The U.N. human rights office says at least 105 civilians were killed in violence-marred Ukraine between mid-May and mid-August, more than double the number of the previous three months in part because of shelling of residential areas.

The office of U.N. High Commissioner for Human Rights Zeid Raad al-Hussein says at least 7,962 people, including fighters and civilians, have died and 17,811 have been injured since the conflict in eastern Ukraine began in April 2014.

An agreement between sides to pull back heavy weapons from the "contact line" has been only partially applied, OHCHR said in a statement accompanying the release Tuesday of the 11th report of its monitoring mission in Ukraine, covering May 16 to August 15.

It said clashes continued daily during the reporting period.