At least four foreign journalists were killed and several people injured on Wednesday when a security forces' convoy was targeted with a bomb in northwest Pakistan's restive Dir district.

The convoy was going from Timergarha to Maidan when it was targeted near a state-run girls' educational institution in Balambut area of Dir district. Four foreign journalists were killed and several other persons injured in the attack, Geo News channel reported, without mentioning the nationalities of those who died.