Three brothers killed in a hand grenade explosion in Khyber Pakhtunkhwa district of Tank on Friday, reported 24NewsHD TV channel.

The explosion occurred in the limits of Murid Akbar Police Station in Shah Alam Village.

Three brothers – 12-year-old Waheed Umar, seven-year-old Nasir Umar and two-and-half-year old Farman Umar – killed in the grenade blast.

Sources divulged to 24News TV channel that the children found the hand grenade from a nullah.

Reporter Sajid Baloch