Officials claim 250 kilograms of explosives had been planted inside a vehicle which was going to be used in the attack.
Zahir Shah Sherazi
The latest clashes took place in the Sipah area of Bara tehsil with Operation Khyber I underway in the region.
Militants fire five rockets on the security forces' camp, resulting in the death of two personnel.
Rescue teams rushed to the site of the attack and shifted the injured to a hospital in Khar.
Key commander Daud Matta is reported to be among the militants killed after jets targeted terrorist hideouts.
Pamphlets distributed in tehsil Khar warn residents against participating in the "anti-Islamic" polio vaccination drive.
Militants say they will blow up the houses of those who leave the area.
Two mortar shells fired from across the border hit the house of a tribesman in Babra Charmang leaving one person dead.
Lashkar-i-Islam leader Haji Faqeer and his men surrendered to security forces in the Shalobar area of Khyber Agency.
Polio workers in the agency refuse to conduct vaccination drive citing non-payment of previous dues.
Pamphlets dropped in Jamrud and Bara areas warned residents of an operation in case the deadline was not met.
The security forces were moving on a routine patrol in Salarzai area when they were hit by an IED explosion.
Khyber Agency has the highest number of reported polio cases after the restive North Waziristan Agency.
Security forces advancing in Sipah Malikdin Khel and Akakhel areas were in clash with militants.
Senior security sources told Dawn that this was the first wave of a fresh offensive launched to clear Bara tehsil.
Moreover, security forces sealed all the roads leading up to Khyber's Bara, where an operation is expected to begin.
Official sources said the blast which may have been a suicide attack occurred in the Pir Mela area of Tirah valley.
At least five helicopters were seen flying near the Pak-Afghan border and two of them entered Torkham and Pasidkhel.
Data reveals that vaccination refusal ratio increased from last year’s 5.5pc to 14pc this year.
Shahidullah Shahid said he along with five TTP district chiefs have announced their allegiance to the Islamic State.