Istanbul police’s anti-terror branch Tuesday arrested a suspected senior ISIS leader Halis Bayancuk on Tuesday, according to a security source.

Axar.az reports citing Yeni Safak.

Bayancuk was arrested as part of the investigation against the militant group carried out by Sakarya Chief Public Prosecutor's Office, the source, who asked not to be named due to restrictions on talking to media, told Anadolu Agency.

The suspect, who is also known as Abu Hanzala, will be brought to northwestern Sakarya province.

Bayancuk is also accused of being leader of ISIS's supporters and sympathizers in Turkey.