Turkish security forces have clashed with thousands of people who were protesting against a draft labor law proposed by the government.
Up to 10,000 people gathered at a park in Ankara on Thursday with the intention of marching on parliament, Hurriyet daily newspaper reported on Thursday.
Riot police blocked a main road leading to parliament's premises and sprayed pepper gas and water cannons at demonstrators to disperse them.
The protestors in return threw sticks, stones and eggs at security forces.
Turkish parliament is debating a new employment legislation, which the government says will produce a more flexible labor model.
Workers, however, argue that the changes will strip them of their rights and give employers more leeway to exploit employees.
Turkey has seen a period of unprecedented economic growth under the ruling Justice and Development (AK) Party.
Opinion polls indicate that the AK Party will secure a third term in office at parliamentary elections slated for June.