Huge crater next to power transformer in Kharkiv

STORY: Ukrainian police and military were at the scene and searching through the rubble on Wednesday and debris from a damaged power transformer were also visible.

Local authorities reported earlier four attacks on the city of Kharkiv that lead to power outages.

The report followed a rocket attack on Kharkiv on September 9 in which at least 10 people were wounded. Ukrainian officials said that attack was revenge for its forces' successes on the battlefield against Russia.