Pakistan security forces arrested at least 54 Taliban militants including seven important leaders in the Bajuar tribal agency, local TV channels reported Tuesday. The paramilitary troops Frontier Constabulary (FC) sources confirmed the arrest during a search operation in the country's northwest tribal area. Bajuar has been remained a stronghold of Taliban militants and Pakistani military claimed that they cleared the region in a full- scale military operation last year. However frequent violence has been reported from the region as still some areas faces unrest. Meanwhile, an announcement was made by the FC commander Major General Tariq Khan that an operation was about to be launched in the nearby Orakzai tribal region and the Tirah valley to quash militant hideouts, the private TV channel DAWN News reported. Militants have been increasingly active in both areas. Recently, militants beheaded a kidnapped Sikh in the Khyber agency's Tirah valley after his relatives failed to pay ransom. Besides, a bomb explosion in a house of Spinkhori area in the northwest city of Hangu demolished the premises and adjacent mosque building on Monday night. Ten persons, including women and children, were injured in the incident. Moreover, the militants attacked a vehicle of the security forces with remote- controlled bomb and injured several security personnel in North Waziristan tribal area. 