Polish officials say the deputy mayor of a town in central Poland was killed by a tree branch toppled by a heavy summer storm. The storm left 10 other people injured and damaged 300 buildings.

As the result of a heavy summer storm in Poland, a roof is blown completely off a house, in Tazewy, Poland, on Friday, June 22, 2018. The storm that hit Poland late Thursday brought down trees and branches, killing the deputy mayor of one town, injuring 10 people and damaging around 300 buildings. (AP Photo/Marian Zubrzycki)

As the result of a heavy summer storm in Poland, a roof is blown completely off a house, in Tazewy, Poland, on Friday, June 22, 2018. The storm that hit Poland late Thursday brought down trees and branches, killing the deputy mayor of one town, injuring 10 people and damaging around 300 buildings. (AP Photo/Marian Zubrzycki)

Police on Friday said Robert Makowski, deputy mayor of Wolomin, a town near Warsaw, died as a result of his injuries sustained late Thursday.

Pawel Fratczak, a spokesman for firefighters, said they responded more than 4,300 times as a result of the storms and that on Friday morning 74,000 households were without electricity.

Among the injured was a firefighter hurt while trying to secure a roof in northern Poland.

About a dozen fires also broke when the storm damaged power lines.