Russia has bombarded Ukraine with the largest attack of the conflict, launching 479 drones overnight in a bold offensive, the Ukrainian air force said.

Most of the drones and missiles were intercepted, according to the Ukrainian Air Force, and there were no immediate reports of widespread damage.

Russia claimed Sunday that its forces are for the first time pushing into the central Ukrainian region of Dnipropetrovsk, an area it has been trying to reach for months, in a move that could create new problems for Kyiv’s much-stretched forces.