Former minister Tulip Siddiq has accused the leader of Bangladesh of conducting an “orchestrated campaign” to damage her reputation and “interfere with UK politics”, according to a new legal letter seen by Sky News.

The Labour MP also said comments made by Professor Muhammad Yunus in a Sky News interview have prejudiced her right to a fair investigation, meaning the ongoing corruption inquiries into her should be dropped.

In March, the chief adviser – who is effectively the country’s interim leader – told Sky News that Ms Siddiq “has so many (sic) wealth left behind here” and “should be made responsible”.

Bangladesh’s Anti-Corruption Commission (ACC) has opened several investigations into Ms Siddiq alleging corruption in connection with the government of her aunt Sheikh Hasina, who was ousted as the country’s prime minister last year.

In the new correspondence sent today to Professor Yunus and the ACC, lawyers for the former minister write: “The time has now come for the chief adviser and the ACC to abandon their wholly misconceived and unlawful campaign to smear Ms Siddiq’s reputation and interfere with her public service.”

Sky News has approached the chief adviser and the ACC for comment.

The Bangladeshi authorities have previously said they have evidence to back up their claims of corruption and will pursue action through the country’s courts.

Speaking to Sky News on Monday, Ms Siddiq said: “I will not be allowing them to drag me into their world of dirty politics and nothing is going to stop me from pursuing the job that I was elected to do with an overwhelming majority, which is representing the people of Hampstead and Highgate.

“So they need to stop this political vendetta, this smear campaign, and this malicious persecution right from the beginning.”

The MP had requested a meeting with the Bangladeshi leader during an official visit to the UK earlier this month to “clear up” any misunderstandings.

But this was turned down by the chief adviser, who said he did not want to “interrupt a legal procedure”.

In the new legal letter, lawyers for Ms Siddiq say the interim leader had already unfairly influenced the inquiries through previous comments.

“The copious briefings to the media, the failure to respond to our letters, the failure to even ask to meet with and question Ms Siddiq during their recent visit to the United Kingdom are impossible to justify and completely inconsistent with a fair, lawful and serious investigation,” reads the letter.

The correspondence also sets a deadline of 30 June 2025 for the Bangladeshi authorities to reply by, stating that “in the absence of a full and proper response… Ms Siddiq will consider this matter closed”.

A former Nobel Prize winning economist, Professor Muhammad Yunus became interim leader of Bangladesh last August after weeks of deadly protests forced Sheikh Hasina from power.

He has pledged to root out corruption and recover alleged stolen wealth before holding votes to elect a permanent administration.

Last month, Professor Yunus banned the Awami League – the political party still led by Sheikh Hasina – from standing in the coming elections.

That led to criticism from those still loyal to the former prime minister, with protests also sparking in the country over jobs, pay and planned reforms.

Earlier this year, it was revealed that Tulip Siddiq had lived in several London properties that had links back to the Awami League.

She referred herself to the prime minister’s standards adviser Sir Laurie Magnus who said he had “not identified evidence of improprieties” but added it was “regrettable” Ms Siddiq had not been more alert to the “potential reputational risks” of the ties to her aunt.

Ms Siddiq said continuing in her role would be “a distraction” for the government but insisted she had done nothing wrong.

Sheikh Hasina is currently standing trial in absentia in Dhaka over alleged killings during last summer’s civil unrest.

Asked by Sky News if she had any regrets about links to the Awami league, Ms Siddiq said: “The main thing I would say to you, I’m very proud to be the MP for Hampstead and Highgate. I was born in London, I grew up in London. I went to school here and now I’m an MP here.”

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In March, Sky News revealed that UK investigators could assist with probes into alleged grand corruption during Hasina’s time in power.

Staff from the National Crime Agency visited Bangladesh in October and November as part of initial work to support the interim government in the country.

Last month, the NCA confirmed it had secured a “freezing order” against a property in north London linked to Ms Siddiq’s family.

She denies all the allegations – and sources close to the MP say the authorities have been sending correspondence to an address in Dhaka that has no connection with her.

A man has been charged with the murder of a 46-year-old woman found stabbed following a gas explosion at a house in London.

Clifton George, 44, will appear at Thames Magistrates’ Court on Monday.

He has also been charged with arson with intent to endanger life, the Metropolitan Police said.

Charity worker Annabel Rook was found fatally injured at a property in Dumont Road, Stoke Newington, northeast London, just before 5am on Tuesday.

In a statement following her death, Ms Rook’s family said they were “struggling to come to terms with this terrible tragedy”.

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“We have lost our beautiful daughter, sister, friend and mother. Annabel was a truly wonderful woman,” the tribute read.

“She touched the hearts of so many.

“She gave her life to helping the vulnerable and the disadvantaged whether it was in refugee camps in Africa or setting up MamaSuze in London, to enhance the lives of survivors of forced displacement and gender-based violence.”

When I got to Chequers on Sunday, the prime minister had clearly been up for most of the night and hitting the phones all morning with calls to fellow leaders in Europe and the Middle East, as he and others scrambled to try to contain a very dangerous situation. 

His primary message was to try to reassure the public that the UK government was working to stabilise the region as best it could and press for a return to diplomacy.

But what struck me in our short interview was not what he did say but what he didn’t – what he couldn’t – say about the US strikes.

It was clear from his swerve on the question of whether the UK supported the strikes that the prime minister neither wanted to endorse US strikes nor overtly criticise President Donald Trump.

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Instead, his was a form of words – repeated later in a joint statement of the E3 (the UK, Germany and France) – to acknowledge the US strikes and reiterate where they can agree: the need to prevent Iran having a nuclear weapon.

He also didn’t want to engage in the very obvious observation that President Trump simply isn’t listening to Sir Keir Starmer or other allies, who had been very publicly pressing for de-escalation all week, from the G7 summit in Canada to this weekend as European countries convened talks in Geneva with Iran.

It was only five days ago that the prime minister told me he didn’t think a US attack was imminent, when I asked him what was going on following President Trump’s abrupt decision to quit the G7 early and convene his security council at the White House.

When I asked him if he felt foolish or frustrated that Trump had done that and didn’t seem to be listening, he told me it was a “fast moving situation” with a “huge amount of discussions in the days since the G7” and said he was intensely pressing his consistent position of de-escalation.

What else really could he say? He has calculated that criticising Trump goes against UK interests and has no other option but to press for a diplomatic solution and work with other leaders to achieve that aim.

Before these strikes, Tehran was clear it would not enter negotiations until Israel stopped firing missiles into Iran – something Israel is still saying it is not prepared to do.

The US has been briefing that one of the reasons it took action was because it did not think the Iranians were taking the talks convened by the Europeans in Geneva seriously enough.

It is hard now to see how these strikes will not serve but to deepen the conflict in the Middle East and the mood in government is bleak.

Iran will probably conclude that continuing to strike only Israel in light of the US attacks – the first airstrikes ever by the US on Iran – is a response that will make the regime seem weak.

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But escalation could draw the UK into a wider conflict it does not want. If Iran struck US assets, it could trigger Article 5 of NATO (an attack on one is an attack on all) and draw the UK into military action.

If Iran chose to attack the US via proxies, then UK bases and assets could be under threat.

The prime minister was at pains to stress on Sunday that the UK had not been involved in these strikes.

Meanwhile, the UK-controlled airbase on Diego Garcia was not used to launch the US attacks.

There was no request to use the Diego Garcia base, the president moving unilaterally, underlining his disinterest in what the UK has to say.

The world is waiting nervously to see how Iran might respond, as the PM moves more military assets to the region while simultaneously hitting the phones.

The prime minister may be deeply opposed to this war, but stopping it is not in his gift.