The daytime barrage targeted 5 Ukrainian cities with more than 40 missiles of different types, and Ukraine’s air force says it intercepted 30 missiles.

Russian forces have for months tried to grind out gains in Ukraine’s industrial east in an apparent attempt to lock its defenders into a war of attrition.

The former prisoners, wrapped in blue and yellow flags, reunited with families in Kyiv and called those who couldn’t be there. For some, the separation had lasted many years.

The attacks came after Russia struck Kharkiv on Saturday afternoon with four aerial bombs, hitting a five-story residential building and killing 3 people.

Letting Ukraine hit targets in Russia with U.S. weapons has reduced missile attacks on Kharkiv but not stopped planes that drop deadly glide bombs.