A Russian drone attack on the Ukrainian city of Kharkiv on Friday damaged a maternity hospital, authorities said, terrifying patients as windows shattered and shards of glass fell on to the beds, leaving families rushing to shelter their babies.

Russia launched its largest drone and missile bombardment of Ukraine overnight into Wednesday, according to Ukrainian President Volodymyr Zelenskyy.

Rubio says those weapons could be transferred to Ukraine, with European countries buying replacements from the U.S.