At least two civilians and three Ukrainian troops have been killed in eastern Ukraine despite the ongoing cease-fire.

Rebel mouthpiece Donetsk News Agency said on Monday two civilians were killed and five injured in shelling on Sunday. Ukrainian military spokesman Andriy Lysenko in Kiev said three Ukrainian troops were killed in fighting and four injured in the past 24 hours.

The September cease-fire has made the hostilities less intense but has failed to bring a lasting peace to the region which has been ravaged by a military conflict between Russia-backed separatists and government troops.

The United Nations' human rights office said in its new report released on Monday that the number of people killed in more than a year of fighting in the east has risen to over 6,400 people.