WANA: At least eight extremists have been killed and 11 others injured in the fresh crackdown of the security forces in various area of South Waziristan Agency, Geo News reported Sunday.

The extremists are fleeing from the areas after the security forces entered the stronghold of extremists. The extremists are believed to be arriving in Orakzai Agency, Kurram Agency and North Waziristan.

To stem the inflow of extremist in the area, curfew has been clamped in North Waziristan Agency (NWA) area of Razmak.

According to sources, the security forces continued the search operation in South Waziristan Agency areas of Makin and Ladha, where eight extremists were killed and 11 others including a commander were injured in the fresh action.

The forces are pounding the hideouts of extremists with fighter jets, gunship helicopters and heavy artillery.

Meantime, search operation has been started in Kurram Agency area of Lower Kurram, where an extremist was killed and three others were injured; while, several others have been arrested.

Pak-Afghan border is still closed today on the third consecutive day.