Russian air strikes killed 37 civilians in the Arbin area of the shrinking rebel enclave of Eastern Ghouta near Damascus overnight, the Syrian Observatory for Human Rights said on Friday.
"Russian air strikes and incendiary weapons killed the civilians in a basement from burning or suffocation" late on Thursday before a ceasefire came into effect in the area, Observatory head Rami Abdel Rahman said.Russia has denied being directly involved in air strikes on Eastern Ghouta.
The Britain-based Observatory says it relies on flight patterns, aircraft involved and ammunition used to determine who carries them out.