Ukrainian authorities told residents in the port city of Izmail to shelter overnight as the area came under Russian drone strikes.

The air force said 436 drones and 38 missiles were downed by air defenses, with the help of U.S.-made F-16 fighter jets whose pilots shot down "dozens" of attack drones. "The work of Ukrainian fighters is extremely dangerous," it said.

A Ukrainian F-16 supersonic fighter supplied by the West was shot down with the loss of a “hero” pilot amid a desperate operation to counter 500-plus strikes by Vladimir Putin’s forces