Syrian opposition activists say airstrikes in rebel-held districts of the city of Aleppo have killed at least 10 people and left many others wounded.

They say one of the strikes on Wednesday hit near the Bayan hospital in the Shaar neighborhood of the contested city.

The Syrian Observatory for Human Rights, a Britain-based opposition monitoring group, said at least 10 were killed, including children. The Local Coordination Committees, which also closely follows the conflict in Syria, also reported the strikes, saying they resulted in multiple casualties.

The northern city of Aleppo has seen an uptick in violence in the last 48 hours. Government forces are pounding rebel-held eastern parts of the city with strikes from the air while rebel are shelling western, government-held parts of the city.