Peshawar, Nov 4 : At least seven people, including three security men, were killed in a suicide attack at a security forces checkpost in Doaba area of Hangu district in Pakistan early today.

A suicide bomber targeted a security forces checkpost near Sorpul in Doaba killing seven including three security officials and injuring four others, The News quoted security forces as saying.

Security forces have cordoned off the area and rescue operation is underway.

Security has been tightened and an emergency has declared in the area after the blast. (ANI)