ISLAMABAD   -   At least three persons were wounded in a powerful explo­sion in Quetta Sariab Road near a university on Saturday after­noon. Police sources confirmed the injuries and said that the attack was carried out through an improvised explosive device (IED), the private news channel reported. Police said that the powerful explosion was heard far and wide causing panic in the city. There has been no claim of responsibility for the explosion yet, police officials mentioned.