5 civilians killed in artillery fire in Donetsk as fighting continues in eastern Ukraine

Ukrainian soldiers carry the coffin bearing the body of serviceman Ruslan Baburov, who was killed in fighting against Russian-backed separatists, during a commemoration ceremony in Independence Square in Kiev, Ukraine, on Monday, Feb. 2, 2015. Ukraine's government said Sunday that 13 of its troops were killed and another 20 wounded in a day of fighting across the east. (AP Photo/Sergei Chuzavkov) (The Associated Press)

Volunteers of the Aidar battalion picket in front of the Ministry of Defense as they protest against a decision to change the leadership of the battalion in Kiev, Ukraine, Monday, Feb. 2, 2015. The Aidar battalion, a volunteer force, and the Defense Minister have agreed that the battalion will be divided into two units. Both of them - one headed by the old leader - will be incorporated into the Defense Ministry and will continue fighting in the country's east against pro-Russian separatists. (AP Photo/Sergei Chuzavkov) (The Associated Press)

People pay their final respects to Ruslan Baburov who was killed in fighting against Russian-backed separatists, during a commemoration ceremony in Independence Square in Kiev, Ukraine, on Monday, Feb. 2, 2015. Ukraine's government said Sunday that 13 of its troops were killed and another 20 wounded in a day of fighting across the east. (AP Photo/Sergei Chuzavkov) (The Associated Press)

Authorities in the rebel stronghold of Donetsk in eastern Ukraine say at least 5 people have been killed and 13 injured by artillery fire in the past day.

The city hall said in a statement early on Tuesday that artillery fire has damaged homes in four districts of the city.

Hostilities between pro-Russian separatists and Ukrainian government troops resumed in January after a month of relative calm. Their main offensive is now directed at Debaltseve, a railway junction once populated by 25,000 people that lies between the rebel-held cities of Luhansk and Donetsk.

Recent talks to settle the conflicts broke down on Friday with both sides blaming each other for derailing the peace process to end a conflict that has killed more 5,100 people.