QUETTA - House of a PIA official was attacked with hand grenade in the provincial capital on Sunday night. According to police sources, unidentified armed people hurled a hand grenade at the house of PIA assistant manager Haji Yaseen, located at Gul Colony on Killi Qambarni Road. Hand grenade landed inside the house and exploded with a big bang, scattering windowpanes of the house, however, no loss of life was occurred in the blast. The blast sent a wave of panic and fear among the people of the area. On getting information, police rushed to the site and cordoned off the area. Police have registered a case against unknown persons and started investigation.