At least one person has been killed after Russia launched its largest drone attack on Ukraine since the beginning of its invasion, Ukrainian officials said Wednesday, just hours after US President Donald Trump pledged more military support for Kyiv and accused his Russian counterpart Vladimir Putin of throwing “bullsh*t” over peace talks.

Trump’s decision to help Ukraine fight an onslaught of Russian attacks reverses a Pentagon decision to withhold defensive weapons.

In a call with reporters, Kremlin spokesman Dmitry Peskov said: "We are quite calm about this." "We expect to continue our dialogue with Washington and our line on repairing the rather broken bilateral relations,