A time bomb exploded under the car of a Greek high security prison director early on Friday (June 7) outside her home, smashing windows of nearby houses and slightly injuring one woman, police officials said.<br/> <br />The device, which police estimate contained at least 1 kg of dynamite, was left under the car driven by Maria Stefi outside her house in the heavily populated Athens suburb of Dafni.<br/> <br />Stefi is the director of the high-security Korydallos Prison, home to serious criminals.<br/> <br />Police cordoned off the area after an unidentified caller warned a Greek news website that a bomb would blow up in 20 minutes. The device went off at about 04:40 local time (0140 GMT). One woman was slightly injured in her home by broken glass.<br/> <br />A police official who spoke on condition of anonymity said authorities believe it was "an act of domestic terrorism". No one has claimed responsibility for the explosion.
