The US suspended all non-immigrant visa services at all its diplomatic facilities in Turkey over what it called ‘recent events,’ on Sunday.

“Recent events have forced the United States government to reassess the commitment of government of Turkey to the security of U.S. mission and personnel,” a statement by the US embassy in Ankara said.

A staff member in US consulate in Istanbul, known as M.T., was arrested as part of an investigation into the Gulen movement, which the government accuses of masterminding the July 15, 2016 coup attempt. The movement denies involvement.

“In order to minimize the number of visitors to our embassy and consulates while this assessment proceeds, effective immediately we have suspended all non-immigrant visa services at all U.S. diplomatic facilities in Turkey.”

On May 7, 2017, Turkey also jailed H.U., a translator for the US Consulate in the southern province of Adana, on charges of membership to the outlawed Kurdistan Workers’ Party (PKK).