Turkey's state-run news agency says police have detained 20 foreign nationals suspected of links to ISIS.
Anadolu Agency said Monday the suspects were detained in the capital Ankara by anti-terrorism police. There was no immediate information on their nationalities.
The sweep came a day after the United States announced that IS leader Abu Bakr al-Baghdadi was killed in a U.S. raid in Syria.
Turkey was also hit by a wave of attacks in 2015 and 2016 blamed on ISIS and Kurdish militants that killed around 300 people.