QUETTA-A grenade attack injured two men at Sariab Road here on Saturday night. According to local police, unidentified attackers on a motorcycle hurled hand grenade into the house owned by Gulam Muhammad Rind at Sariab Mill colony. As a result, hand grenade exploded and injured two persons. The injured were identified as Ramzan and Zahoor Ahmed. They were shifted to hospital for treatment. The assailants escaped from the site after the committing crime. Police has registered a case and is investigating.