The United Nations Security Council on Monday will hold a meeting to discuss the deteriorating humanitarian situation in Ukraine after more than 1.7 million Ukrainians have so far crossed into central Europe.
The meeting was expected to start at 2000GMT, three diplomats said.
The United Nations has been at the forefront of diplomatic efforts urging an end to Russia's invasion of Ukraine.
Russia has called the campaign it launched on February 24 a "special military operation".
France and Mexico last week worked on a resolution to the UN Security Council to address the humanitarian impact, but it was unclear if it would be formally tabled on Monday's meeting.
A total of 1,735,068 civilians - mostly women and children, as men stayed home to fight - have crossed the border into central Europe, the UNHCR said.
Poland, which has the largest Ukrainian community in the region - has received more than 1 million Ukrainian refugees, with the milestone passed late on Sunday.
An explosion at a fireworks warehouse in Karachi, Pakistan's largest city, injured at least 34 people on Thursday, police said, causing panic among residents.
A Ukrainian man was arrested at a holiday bungalow in Italy on suspicion of coordinating attacks on three Nord Stream gas pipelines in 2022, officials said on Thursday, a breakthrough in an episode that sharpened tensions between Russia and the West.
The Israeli military maintained its pressure on Gaza City with heavy bombardments overnight, residents said, ahead of a Thursday meeting between Prime Minister Benjamin Netanyahu and his ministers on plans to seize the enclave's largest city.
Russian President Vladimir Putin is prepared to meet Volodymyr Zelenskyy but all issues must be worked through first and there's a question about the Ukrainian leader's authority to sign a peace deal, Foreign Minister Sergei Lavrov said on Thursday.
United Nations Secretary-General Antonio Guterres on Thursday called for an immediate ceasefire in Gaza, after Israel announced the first steps of an operation to take over Gaza City.