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.
President Donald Trump has stated on Monday that the US would either reach a deal with Iran or "finish the job", renewing his threat of military action.
At least eight people have been killed after thunderstorms battered central China's Hubei Province, state media said on Tuesday, as forecasters warned of more torrential rain across various parts of the country that are home to around 200 million people.
Sixteen people remain buried in a mountainous county in China's western province of Gansu after a landslide on Tuesday, according to state broadcaster CCTV.
Hamas has announced on Monday that it had dissolved its de facto government in Gaza and was ready to hand over to a group of Palestinian technocrats, a move it described as a step forward in a US-backed plan for the enclave, but Israel dismissed as a "stunt".
The death toll from Venezuela's twin earthquakes has risen to 3,535, authorities said on Monday, while nearly 18,000 people remain homeless more than a week after the disaster struck the capital and nearby coastal areas.