At least 11 security personnel and three civilians, including a child, were killed in two bomb attacks and a gunfight between police and militants in northwest Pakistan, a security official said.

The separate incidents Monday in Khyber Pakhtunkhwa province, which left at least 25 others wounded, come as Pakistan's security forces battle intensifying insurgencies in southern and northern provinces that border Afghanistan.

This month, the Daesh terrorist group claimed responsibility for a massive suicide blast at a Shiite mosque in the capital, Islamabad, that killed at least 31 people, with 169 more wounded.

Speaking on condition of anonymity, the security official said that Monday evening, a suicide bomber rammed an explosives-laden vehicle into the wall of a religious college in the tribal district of Bajaur in Khyber Pakhtunkhwa.

"As a result, eight police and Frontier Corps personnel present inside the seminary were martyred and 10 others injured," he said.