Two children were killed and 13 others were injured when a bomb went off near the home of a tribal elder in the restive Khyber tribal region in northwest Pakistan on Saturday, officials said.

The bomb was detonated by remote control as a group of people were leaving the home of tribal elder Malik Rasool Jan Shinwari at Landi Kotal in Khyber Agency.

The people had gathered at his residence for a jirga or tribal council, officials said.

Personnel from the Khassadar Force took 15 injured people to a nearby hospital, where a young boy and girl succumbed to their injuries.

Five of the wounded, who were in a serious condition, were shifted to a hospital in Peshawar.

No group has claimed responsibility for the attack.