More than 400 people were injured during an anti-government rally in Romania's capital, police say, BBC reports.
More than 50,000 people took part in in Friday's protest in Bucharest against what they described as entrenched corruption and low wages.
Several police officers were also hurt as some protesters threw bottles and police used tear gas and water cannon. A new protest is planned for Saturday.
President Klaus Iohannis said the police reaction was "disproportionate".
"I firmly condemn riot police's brutal intervention, strongly disproportionate to the actions of the majority of people," he said.