Media cell of Pakistan military, Inter-Services Public Relations (ISPR) reported that the Army Chief, Khyber Pakhuntkhwa (KP) Governor and Peshawar Corps Commander among other military and civil personalities. Sources claimed that the attacker targetted soldiers in a ground where they were playing volleyball.
Local reports said that the death toll may further increase as several were in critical condition among the injured.
The military statement said 13 people were injured in the blast and have admitted to the hospital.
The insurgents were active in this region in 2007-2009 before the Pakistani forces regained control over the area following a massive military operation.
In a statement, the outlawed militants groups Tehrik-e-Taliban Pakistan (TTP), claimed responsibility for the attack.
Security has been tightened in the area and the police have launched an investigation. "Wait for more [such attacks] to follow".
Pakistan's Prime Minister Shahid Khaqan Abbasi condemned the attack.
Prime Minister Abbasi said the war against terrorism will continue till the elimination of the last terrorist from Pakistan.
Earlier in December, security forces conducted an intelligence-based operation in Swat's Jahan Abad area and killed two wanted terrorists.