Turkey's state-run news agency says police have launched simultaneous raids on 44 companies suspected of providing financial support to U.S.-based Muslim cleric Fethullah Gulen's movement.
Turkey accuses Gulen of being behind the July 15 failed coup, a claim Gulen denies.
The Anadolu Agency says Tuesday's raids in Istanbul's Umraniye and Uskudar districts came after authorities issued warrants to detain 120 company executives as part of the investigation into the coup attempt. The agency did not identify the companies searched.
The government has launched a massive crackdown on suspected supporters of Gulen's movement. More than 35,000 people have been detained for questioning while tens of thousands of others have been dismissed from government jobs, including in the judiciary, media, education, health care, military and local government.