Seven security forces were killed in a suicide attack in Pakistan's tribal region, the state-run PTV channel reported on Tuesday.

The attack, targeting a van of security forces, occurred at Bara Qadim area in Khyber tribal agency, said the report.

The attack also injured 10 other people. No group has claimed responsibility for the attack so far.

Further report about the attack is not immediately available.

(Xinhua News Agency May 5, 2009)