Greek prison guards have foiled an escape attempt by helicopter involving at least four inmates, and one of them has been shot.

GANGS of rock-throwing youths made sporadic attacks on police stations across Athens, stoned the Interior Ministry and clashed with riot police outside parliament yesterday in a third day of violence protesting the police shooting of a teenager.

Police fired tear gas at rioting youths smashing up shops today in the third day of rioting sparked by their shooting dead an Athens teenager.