The number of civilian casualties in Ukraine has continued rising after a series of Russian attacks over the weekend.

Intense strikes on educational and commercial buildings in the southern region of Kherson on Saturday left two people dead and two others injured, according to a social media post by local authorities.

They said another attack early Sunday morning caused injuries.

The governor of the eastern region of Kharkiv said on social media that a Russian strike destroyed a residential building, killing two people and injuring another.

Military officials in the southern region of Zaporizhzhia told local media that a missile attack by Russia caused infrastructure damage on Sunday.

Russian President Vladimir Putin said in an interview with a state-run television aired on Sunday that Ukraine's counteroffensive, which has "allegedly been stalled," has "failed completely."

He said Russian troops are improving their positions on the frontlines in Kupiansk in Kharkiv and Avdiivka in the Donetsk region, both in the east, as well as in Zaporizhzhia.

Ukraine's military said on Sunday that its counteroffensive operations are continuing in the directions of the major southern city of Melitopol and the eastern city of Bakhmut. The military emphasized that Ukraine is regaining its territory step by step.