United Nations Secretary-General Antonio Guterres is deeply concerned about developments in Jenin.
A spokesperson said Israeli forces hit the West Bank city with drone strikes in one of the largest operations in the area in 20 years.
Guterres "affirms that all military operations must be conducted with full respect for international humanitarian law," Deputy UN spokesperson Farhan Haq said in a statement.
It follows the UAE's strong condemnation of the attacks.
Trump says US may strike Iran again but that Tehran wants deal
President Donald Trump said on Tuesday that the US may need to strike Iran again and that he had been an hour away from ordering an attack before postponing it.
Ukrainian drone shot down by NATO jet over Estonia
Ukraine blamed Russia on Tuesday for steering one of its drones into Estonian airspace where a NATO jet shot it down, the latest cross-border drone incident that has caused a political uproar in the Baltic states.
Israeli forces fired shots at Gaza flotilla; group says boats intercepted
Israeli forces opened fire on at least two vessels in an aid flotilla sailing towards Gaza on Tuesday, according to video footage and flotilla organisers, but Israel said no live ammunition was used and there were no casualties.
Trump says he paused attack on Iran as negotiations continue
US President Donald Trump said on Monday he had paused a planned attack against Iran to allow for negotiations to take place on a deal to end the US-Israeli war, after Iran sent a new peace proposal to Washington.
At least 18 killed as heavy rains drench southern, central China
Torrential rain continued across southern and central China on Tuesday with at least 18 people killed in widespread flooding that also closed schools and businesses, and disrupted transport and power supplies, authorities said.
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