Ukraine's President Volodymyr Zelenskiy called on allies on Sunday to honour all promises to supply Ukraine with weapons, including those to counter Russian air attacks.
Zelenskiy said that over the past week Russian forces had launched hundreds of strikes on Ukraine and nearly 700 aerial bombs and over 600 attack drones were used.
Ukrainian air defences downed 60 out of 94 drones launched by Russia overnight, the air force said on Sunday. It said that 34 drones were "lost", in reference to Ukraine's use of electronic warfare to redirect Russian drones.
"Every week, the Russian war continues only because the Russian army retains its ability to terrorise Ukraine and exploit its superiority in the sky," Zelenskiy said on the Telegram messaging app.
He called on Ukraine's allies to fulfil agreements already made.
"The decisions made at the NATO summit in Washington, as well as those adopted during the Ramstein meetings regarding air defences for Ukraine, have still not been fully implemented," Zelenskiy said.
Ukraine's leader this week said he had discussed with partners and the United States the possibility of granting Ukraine licenses to produce air defence systems and missiles.
A Russian attack on Ukraine's southern Odesa region killed two people and injured three overnight, Ukraine's emergency service and a government official said on Monday.
Former Philippine President Rodrigo Duterte was "pivotal" in the murder of thousands of people during his rule, prosecutors at the International Criminal Court (ICC) said on Monday, as they pushed for his trial to go ahead.
Children across parts of the US Northeast will stay home on Monday as a powerful winter storm forced school closures and pushed offices and transit systems onto emergency schedules, with officials across the region warning of dangerous travel conditions.
A passenger bus plunged 200 metres (650 feet) from a mountainous road in west Nepal before dawn on Monday, killing 19 people including three foreign nationals.
Human rights are under assault worldwide, the United Nations chief warned on Monday, citing widespread abuses of international law and devastating civilian suffering in conflicts in Sudan, Gaza and Ukraine.