At least 38 civilians including 14 children were killed by rebel bombardment on Tuesday of a regime-held area of the northern Syrian city of Aleppo, a monitor said.

"Rocket fire on government districts is still going on," said Rami Abdel Rahman of the Britain-based Syrian Observatory for Human Rights.

He gave a toll of at least 150 wounded in the attacks which Syrian state media earlier said had killed at least 19 people and wounded 95.