PESHAWAR: At least five suspected militants were reportedly killed in a United States drone strike in Afghanistan's Nangarhar province near the Pak-Afghan border in Khyber tribal region on Sunday.

According to a source, the drone fired two missiles on a vehicle carrying suspected militants in Lalpur district of Afghanistan's Nangarhar province, adjacent to Shilman Valley in Khyber Agency.

As a result of the strikes, at least five suspected militants were killed.

Also read: Drone strike near Khyber border kills nine, including driver of LI chief

Khyber is one of Pakistan’s seven semi-autonomous regions governed by tribal laws and lies near the porous Afghan border. These are also home to religious extremist organisations including Al Qaeda.

Military operations titled 'Khyber One' and 'Khyber Two' were launched by security forces and aimed at targeting militants in Khyber Agency, particularly the Tirah Valley of Bara which borders Nazyan, near the Pakistan-Afghanistan border.

The operations in Khyber tribal region were launched amid operation Zarb-i-Azb being conducted by the Pakistan Army in North Waziristan tribal region.

No one tracks drone strikes in Afghanistan — many of them take place in remote regions and are not reported.

Drone attacks are widely unpopular across Pakistan and according to survey conducted in June last year, 66 per cent of the country's citizens oppose these strikes.