Ankara - Ten prisoners died in the Turkish capital in clashes between left-wingers and warders which the Prime Minister, Mr Bulent Ecevit, called an intolerable challenge to government control.
The violence in Ankara spread to other jails where leftwingers held wardens hostage or refused to co-operate with head-counts.
Mr Ecevit said the fighting had broken out when the inmates resisted attempts to search them prior to transfer to other jails, and that between 20 and 25 security officials and prisoners had been injured.