More than 100 dolphins and thousands of fish have been found dead in the Brazilian Amazon as drought and record-breaking high temperatures grip the region.
Experts said the temperature of the water in some parts of the Amazon reached a record 39C (102F) and believe the conditions are making it increasingly difficult for wildlife to survive.
Scientists at the Brazilian government-funded research facility, the Mamiraua Institute, said the dolphins had been found in Lake Tefe, in the northern part of the country.
The institute told CNN: “It’s still early to determine the cause of this extreme event, but according to our experts, it is certainly connected to the drought period and high temperatures in Lake Tefe, in which some points are exceeding 39C.”
Experts fear there could be further dolphin and wildlife fatalities with the severe drought conditions expected to continue into the next couple of weeks.
It comes as dead fish have been piling up in some rivers winding through Brazil’s Amazon rainforest.
The drought has led water levels to fall, making it more difficult for people to access food and drinking supplies.
Officials said the dead fish has rotted and contaminated water supplies, affecting more than 110,000 people.
In Brazilian city Manacapuru, there were reports of fish seen jumping in an attempt to escape the scorching, shallow waters.
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Caroline Silva Dos Santos, who works in a shop in Manacapuru, said: “It is difficult because of the contamination of the water, we need a lot of it to bathe.
“And we also drink the water, but because it is contaminated we’re not drinking it.
“We’re getting water by bringing it from the city.”
Scientists say the region is under pressure from the El Nino weather phenomenon – which forms in the Pacific Ocean and contributes more heat to a warming world – with the volume of rainfall in the northern Amazon below the historical average.
The Amazon Working Group, which represents 503 organisations, said the water level along one tributary of the Amazon River has been dropping by 20cm (8ins) a day.
Ane Alencar, science director at the Institute for Amazonian Environmental Research, who believes climate change is having a big impact on the region, said: “I think it is already a reflection as to what may be the new normal that we are going to be facing in the future.
“People will lose their goods, homes, cattle. We usually neglect the impacts of drought on human life and health.”
Mr Yoon’s presidential security service prevented dozens of investigators from arresting him after a standoff which lasted nearly six hours on 3 January.
The Corruption Investigation Office for High-Ranking Officials and police responded by pledging more forceful measures to detain Mr Yoon while they jointly investigate whether his martial law declaration on 3 December amounted to an attempted rebellion.
The National Police Agency convened multiple meetings of field commanders in Seoul and nearby Gyeonggi province in recent days to plan their detainment efforts, and the size of those forces fuelled speculation that more than 1,000 officers could be deployed in a possible multi-day operation.
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From 3 January: South Korea protesters clash with police
Anti-corruption agency and police officials met representatives of the presidential security service on Tuesday morning for unspecified discussions regarding efforts to execute the detention warrant for Mr Yoon.
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It was not immediately clear at the time if any kind of compromise was reached.
What happened on 3 December?
Mr Yoon declared martial law and deployed troops around the National Assembly at the beginning of last month.
It lasted only hours before politicians managed to get through the blockade and voted to lift the measure.
His presidential powers were suspended when the opposition-dominated assembly voted to impeach him on 14 December, accusing him of rebellion.
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How six hours of martial law unfolded in South Korea
Mr Yoon has argued his declaration of martial law was a legitimate act of governance, calling it a warning to the main liberal opposition Democratic Party which he has described as “despicable pro-North Korean anti-state forces”.
He claimed the party used its legislative majority to impeach top officials and undermine the government’s budget.
Over the past two weeks, thousands of anti-Yoon and pro-Yoon protesters have gathered daily in competing rallies near his office in Seoul, in anticipation of the second detention attempt.
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A Gaza deal is “on the brink”, President Joe Biden has said in his final foreign policy address.
The outgoing US leader said it would include a hostage release deal and a “surge” of aid to Palestinians.
“So many innocent people have been killed, so many communities have been destroyed. Palestinian people deserve peace,” he said.
“The deal would free the hostages, halt the fighting, provide security to Israel, and allow us to significantly surge humanitarian assistance to the Palestinians who suffered terribly in this war that Hamas started.”
The US president also hailed Washington’s support for Israel during two Iranian attacks in 2024.
“All told, Iran is weaker than it’s been in decades,” he said.
Mr Biden was delivering his final foreign policy address before he leaves office next week.
Monday’s address will be the penultimate time he speaks to the country before the end of his presidency. He is due to give a farewell address on Wednesday.
US and Arab mediators made significant progress overnight toward brokering a ceasefire in the Israel-Hamas war and the release of scores of hostages held in the Gaza Strip – but a deal has not been reached yet, officials said.
A round of ceasefire talks will be held in Doha on Tuesday to finalise remaining details related to a ceasefire deal in Gaza – including over the release of up to 33 hostages – officials added.
Mr Biden went on to claim America’s adversaries were weaker than when he took office four years ago and that the US was “winning the worldwide competition”.
“Compared to four years ago, America is stronger, our alliances are stronger, our adversaries and competitors are weaker,” he said.
“We have not gone to war to make these things happen.”
The Israel Defence Forces (IDF) has admitted to a “serious offence” after a Sky News investigation analysed CCTV footage showing the moment an 80-year-old Palestinian grandmother was shot in the West Bank.
Halima Abu Leil was shot during a raid in Nablus. The grandmother died soon after.
During the course of the investigation, we noted that a blue vehicle marked as an ambulance and with a red light on its roof was used by IDF troops to enter the West Bank.
Our investigation stated: “Figures who appear to be Israeli military forces exit the ambulance in the foreground. They are equipped with helmets, backpacks, rifles, and other gear.”
The use of a marked medical vehicle for a security operation could be a contravention of the Geneva Convention and a war crime – as well as Halima’s killing.
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CCTV shows Palestinian grandmother shot in IDF raid
The IDF has subsequently told Sky News: “On December 19, 2024, soldiers from the ‘Duvdevan’ unit took part in an operational mission to detain terrorists in Nablus.
“During the operation, an ambulance-like vehicle was used for operational purposes, without authorisation and without the relevant commanders’ approval.”
It added: “The use of the ambulance-like vehicle during the operation was a serious offence, exceeding authority, and a violation of existing orders and procedures.”
It also said the commander of the ‘Duvdevan’ unit was “reprimanded”.
However, it gave no update into the death of Halima, saying “the circumstances of the incident are being examined”.
The United Nations Special Rapporteur on occupied Palestinian territory Francesca Albanese watched the CCTV video and told Sky News her death could be a “war crime”.
She said: “When I look at the footage, what emerges prima facie is that there were no precautions taken – within these operations whose legality is debatable – to avoid or spare civilian life.
“No principle of proportionality because there was wildfire directed at the identified target and ultimately no respect for the principle of distinction.
“So this was a murder in cold blood and could be a war crime as an extrajudicial killing.”
According to the United Nations Office Of Human Rights in occupied Palestinian territory, Israeli security forces and settlers have killed at least 813 mostly unarmed Palestinians, including 15 women and 177 children, since 7 October 2023.