200731 Pakistan
File photo Image Credit: AP

Peshawar: Five people were killed in a blast in northwestern Pakistan on Tuesday, including an influential anti-Taliban tribal leader, police said, in the first major bombing in over a decade in an area that was once a battleground between security forces and militants.

Peace committee leader Idrees Khan's vehicle drove over an improvised explosive device, killing him and two bodyguards, Swat police officer Zahid Marwat told Reuters.

No one has claimed responsibility for the attack.

Khan was a local elder and previously the head of a tribal force fighting against the TTP in Swat. Pakistani forces, along with local fighters, were able to drive the militants from the area in an intense military operation.

The operation had made global headlines with the international community fearing the rapid advance of the TTP fighters towards the capital, Islamabad.

Local residents said Tuesday's blast was first major blast in Swat after the 2009 military operation in the picturesque valley, which is where militants shot education activist Malala Yousafzai, who later went on to win the Nobel Peace Prize.

Locals told Reuters that many affluent residents and political leaders had already shifted their families out of Swat in recent weeks after the TTP resurfaced in the area.