Ukrainian President Volodymyr Zelenskyy says he has discussed air defences with his US counterpart, agreeing to work on increasing Kyiv's capability to "defend the sky" as Russian attacks escalate.

Donald Trump is likely to hold crucial talks with counterpart Volodymyr Zelenskyy on halting support of US weapons to Ukraine, amid an ongoing war with Russia.

WASHINGTON (AP) — President Donald Trump complained Thursday that the United States provided too many weapons to Ukraine under the previous administration, his first public comments on the pause in some shipments as Russia escalates its latest offensive.