Former Syrian Kurdish PYD leader Saleh Muslim said on Tuesday he had been aware of a Turkish warrant for his arrest but did not take it seriously, calling the allegations against him false.
Muslim was detained over the weekend in the Czech capital at the request of Turkey, which accuses him of disrupting the state and aggravated murder.
A court released him on Tuesday despite Turkey's call for his detention pending an extradition request.
Turkey accused the Czech judicial authorities of backing terror after the release of Muslim, warning that ties between Ankara and Prague would be harmed.
"This decision is very clearly a decision in support for terrorism," Deputy Prime Minister Bekir Bozdag told reporters in Ankara.
"This decision will negatively impact relations between Turkey and the Czech Republic," he warned, without giving details.
Muslim, who pledged to the Czech court to remain in the European Union pending further proceedings, told reporters he had not decided where he would go next. He added he had permission for residency in EU member Finland.
On Sunday, Muslim was detained in the Czech capital. The decision to detain him was made on February 24 by the Interpol’s office in the Czech Republic on the basis of Ankara’s request.
