Turkish prosecutors are seeking an international arrest warrant for Knicks center Enes Kanter, accusing him of membership in a terrorist organization.

The Sabah newspaper said the Istanbul chief prosecutor’s office had also prepared an extradition request for Kanter, a Turkish citizen who has been a vocal critic of Recep Tayyip Erdogan, the country’s president. Officials at the prosecutor’s office could not be reached by The Associated Press for comment.

Kanter, who did not travel with the Knicks this week for their game in London after saying he feared he might be killed there over his opposition to Erdogan, responded on Twitter that the Turkish government could not present “any single piece of evidence of my wrongdoing.”