Beirut: At least 29 civilians were killed on Saturday in airstrikes targeting areas under the control of Islamic State in eastern Syria, a monitoring group said.
The air strikes carried out by Russian or Syrian warplanes occurred in the town of Khasham, near the city of Deir al-Zor.
The death toll in two other towns near Deir al-Zor reached 44, in strikes also carried out by Russian or Syrian warplanes the day before, the Britain-based Syrian Observatory for Human Rights said.
In Raqqa city, Islamic State's de facto capital in Syria, at least 32 people were killed.
Russian jets have been bombing around Deir al-Zor as Syrian pro-government forces clash with Islamic State fighters, who control most of the province. The group has besieged remaining government-held areas of the city since last March and last week launched new attacks.
In Raqqa, Russian warplanes have been bombarding Islamic State positions. Jets from a US-led coalition have separately struck the group in both Raqqa and Deir al-Zor provinces.
The United States says most of Russia's air strikes in support of Syrian President Bashar al-Assad are targeting other rebel groups in the west of the country, including foreign-backed fighters.