The number of civilians killed in Russian airstrikes on a Daesh-held town in eastern Syria rose to 70, local sources said late Sunday.
A written statement by the Syrian Muslim Brotherhood said the victims were killed Saturday when Russian warplanes struck a mosque and its surroundings in the town of al-Quriya.
Russian fighter jets pounded the area again with cluster bombs as civilians attempted to rescue the victims, the statement said.
Al-Quriya fell to the Daesh militant group in 2014.
Syria has been locked in a vicious civil war since early 2011, when popular protests were met with heavy force from the Assad government.
More than a quarter of a million people have been killed and more than 10 million displaced throughout the country, according to the UN.
By Saber Ghanem Ibrahim Eid
Editor's note: This article has been edited from the source material.