A missile fired by Syrian regime forces killed at least 18 civilians on Tuesday in a residential neighbourhood of the old quarter of Aleppo city, a monitoring group said.

"The missile struck when people were still inside their homes in the Maghayir district. It killed 18 civilians, including one child, and wounded dozens of others," said Rami Abdel Rahman, director of the Syrian Observatory for Human Rights.

He told AFP that more than 35 homes were destroyed in the attack.