ANKARA, Turkey — Turkish authorities on Sunday released a Turkish-Dutch journalist from police custody but barred her from leaving Turkey as they continue to investigate tweets she sent about President Recep Tayyip Erdogan.

Ebru Umar, a columnist for Metro newspaper, was detained for questioning late on Saturday at her home in the Aegean resort of Kusadasi, on the orders of a prosecutor for social media postings deemed to be ‘‘insulting to state leaders,’’ Turkey’s state-run news agency reported.

In a short video posted on Metro’s website, Umar said she was woken up Saturday night by two police officers knocking on her door who told her to go with them because of two tweets.

‘‘I was treated well, I can’t put it any other way,’’ she said. ‘‘I had a good evening with a 55-year-old man discussing politics and the situation in Turkey.’’

She said she ‘‘is not altogether free. I am not allowed to leave the country.’’ She said a lawyer is trying to get the travel restriction lifted.

Human rights and media freedom groups have repeatedly sounded the alarm over the limited tolerance of dissent shown by authorities in Turkey, where nearly 2,000 legal cases have been opened against individuals accused of insulting the Turkish president since Erdogan came to office in 2014.

Critics say the president is taking advantage of a previously seldom used law to muzzle dissenting voices.

Umar was detained as German Chancellor Angela Merkel and top EU officials were in Turkey to bolster a deal to stem the flow of migrants to Europe.

Associated Press