State school teachers and hospital doctors in debt-ridden Greece have walked off the job to protest planned education and health spending cuts.
Doctors in the social security fund system were also on strike for the second day Wednesday, demanding that their fixed-term contracts be made permanent.
Health and education unions are planning demonstrations in central Athens later in the day, to protest planned school and hospital mergers.
Severe cutbacks by the government have sparked a series of strikes and protests over the past year.
Greece was saved from bankruptcy last May by a euro110 billion ($155 billion) package of bailout loans from other EU countries that use the euro, and the International Monetary Fund.