People in the city are said to be enduring freezing temperatures with no power, and little food and water.

NEW DELHI — Russian forces have shelled a mosque in the southern Ukrainian port city of Mariupol, where more than 80 adults and children, including Turkish citizens, have taken refuge, Ukraine’s foreign ministry says.

Mariupol has been under siege and bombardment for more than a week and is encircled by Russian troops, according to reports.

A government statement issued on Saturday did not have any immediate reports of casualties.

Ukraine has accused Russia of refusing to allow people out of Mariupol, where a blockade has left hundreds of thousands trapped. People in the city are said to be enduring freezing temperatures with no power, and little food and water. Russia in turn blames Ukraine for the failure to evacuate people.

The Ukrainian Embassy in Turkey reported earlier that a group of 86 Turkish nationals, including 34 children, were among those seeking refuge inside the mosque from an ongoing Russian attack on the encircled port city.