LONDON — At least 11 people, including a pregnant woman, have been injured from ongoing Russian attacks in the Kyiv region early Friday morning, Kyiv Mayor Vitali Klitschko said in a post on Telegram.

Sections of certain heating networks in the region were damaged from the attack, and some buildings were without heat supply, the mayor added.

At least 15 buildings have been damaged in Kyiv so far from the attacks, the Kyiv City State Administration said in a post on Telegram.

Meanwhile, earlier this week, Ukrainian forces were forced to withdraw from several positions in the Zaporizhzhia region, the southeastern front, due to intense Russian assaults, according to a spokesperson for the army.

Russian forces have launched more than 400 artillery strikes per day and Ukrainian troops faced the destruction of defensive fortifications, Southern Defense Forces spokesman Vladyslav Voloshyn told ABC News.

The withdrawal affected the areas around Novouspenivske, Nove, Okhotnyche, Uspenivka and Novomykolaivka, according to Voloshyn.

“The situation there remains difficult, in part because of weather conditions that favor the attacks. But we continue to destroy the occupier, and I thank every one of our units, every warrior involved in defending Ukraine’s positions,” Ukrainian President Volodymyr Zelenskyy said Tuesday.

Ukraine is also facing the potential fall of Pokrovsk — a city home to around 60,000 people at the time of Russia’s 2022 full scale invasion of Ukraine — to Russia after 18-month battle of attrition. This could be one of the most serious defeats of the war for Ukraine.