Pakistan army is suffering heavy casualties at the hands of Tehreek-e-Taliban (TTP) which has intensified its attacks on the military after the collapse of ceasefire that was brokered by Haqqani network. Four Pakistani army men were killed in a latest attack by TTP in North Waziristan. The casualties were confirmed by the ISPR, the media wing of Pakistan militant, and the TTP also owned the attack in a statement. The TTP, which is backed by Afghan Taliban, has stepped up its attacks on Pakistan this year amid return of the Islamists in the neighbouring Afghanistan. Watch this video for more.