A small plane has crashed at Southend Airport in Essex.

Essex Police said it was at the scene of a “serious incident”.

Images posted online showed huge flames and a large cloud of black smoke, with one witness saying they saw a “fireball”.

A police statement said: “We were alerted shortly before 4pm to reports of a collision involving one 12-metre plane.

“We are working with all emergency services at the scene now and that work will be ongoing for several hours.

“We would please ask the public to avoid this area where possible while this work continues.”

It has been reported that the plane involved in the incident is a Beech B200 Super King Air.

According to flight-tracking service Flightradar, it took off at 3.48pm and was bound for Lelystad, a city in the Netherlands.

One man, who was at Southend Airport with his family around the time of the incident, said the aircraft “crashed headfirst into the ground”.

John Johnson said: “About three or four seconds after taking off, it started to bank heavily to its left, and then within a few seconds of that happening, it more or less inverted and crashed.

“There was a big fireball. Obviously, everybody was in shock in terms of witnessing it. All the kids saw it and the families saw it.”

Mr Johnson added that he phoned 999 to report the crash.

Southend Airport said the incident involved “a general aviation aircraft”.

Four flights scheduled to take off from Southend this afternoon were cancelled, according to its website.

Flightradar data shows two planes that had been due to land at Southend were diverted to nearby airports London Gatwick and London Stansted.

Essex County Fire and Rescue Service said four crews, along with off-road vehicles, have attended the scene.

Four ambulances and four hazardous area response team vehicles are also at the airport, as well as an air ambulance, the East of England Ambulance Service said.

Its statement described the incident as “still developing”.

David Burton-Sampson, the MP for Southend West and Leigh, posted on social media: “I am aware of an incident at Southend Airport. Please keep away and allow the emergency services to do their work.

“My thoughts are with everyone involved.”

Local councillor Matt Dent said on X: “At present all I know is that a small plane has crashed at the airport. My thoughts are with all those involved, and with the emergency services currently responding to the incident.”

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The man convicted of the murder of British student Meredith Kercher has been charged with sexual assault against an ex-girlfriend.

Rudy Guede, 38, was the only person who was definitively convicted of the murder of 21-year-old Ms Kercher in Perugia, Italy, back in 2007.

He will be standing trial again in November after an ex-girlfriend filed a police report in the summer of 2023 accusing Guede of mistreatment, personal injury and sexual violence.

Guede, from the Ivory Coast, was released from prison for the murder of Leeds University student Ms Kercher in 2021, after having served about 13 years of a 16-year sentence.

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Since last year – when this investigation was still ongoing – Guede has been under a “special surveillance” regime, Sky News understands, meaning he was banned from having any contact with the woman behind the sexual assault allegations, including via social media, and had to inform police any time he left his city of residence, Viterbo, as ruled by a Rome court.

Guede has been serving a restraining order and fitted with an electronic ankle tag.

The Kercher murder case, in the university city of Perugia, was the subject of international attention.

Ms Kercher, a 21-year-old British exchange student, was found murdered in the flat she shared with her American roommate, Amanda Knox.

The Briton’s throat had been cut and she had been stabbed 47 times.

Ms Knox and her then-boyfriend, Raffaele Sollecito, were placed under suspicion.

Both were initially convicted of murder, but Italy’s highest court overturned their convictions, acquitting them in 2015.