Ukrainian officials reported Russian attacks on critical infrastructure in the west of Ukraine, bordering Poland.

KYIV, Ukraine (AP) — Waves of drones and missiles targeted Kyiv overnight in the largest aerial assault since Russia’s invasion of Ukraine began more than three years ago, officials said Friday, amid a renewed Russian push to capture more of its neighbor’s land.

Ukraine has claimed that Russia launched its biggest aerial assault since the war began, reportedly firing over 530 drones and missiles in a single night.