Ukraine fighting continues despite ceasefire
Shelling continued in Donetsk in eastern Ukraine despite the ceasefire signed between Kiev and pro-Russian separatists last month.
The rebel-controlled city saw 10 civilians were killed on Wednesday as a school playground and nearby minibus were hit by rocket fire on the first day of the new school year.
"The Donetsk People's Republic used rocket launchers to shoot at a school... the shell exploded five metres away from the building," the regional administration said in a statement.
Russian media and separatist websites showed footage of rebels launching attacks from positions in apartment buildings near government-controlled Donetsk airport, AFP reported.
No children were killed in the school shelling though witnesses told Reuters that the dead included a biology teacher and the parent of a child at the school.
The United States earlier decried the "intensifying violence" in eastern Ukraine and called on Russia and the rebels to hold fire.
"Since the ceasefire was signed... attacks on Ukrainian positions and towns, including around the Donetsk airport... have killed and wounded scores of Ukrainian armed forces and civilians," State Department spokeswoman Jen Psaki said.
"We call on Russia and the separatists it backs to immediately end these attacks."
She also called on Russia to withdraw all forces and equipment from the country.