At least four PKK terrorists were neutralized on Friday in eastern Turkey, according to the Turkish Interior Ministry.

The terrorists were “neutralized” in a joint operation, carried out by provincial gendarmerie and police forces in the Tutak district of Agri province, the ministry said in a statement.

Turkish authorities often use the word “neutralized” in statements to imply the terrorists in question surrendered or were killed or captured.

The ministry added that the operation is still underway.

Earlier, three other PKK terrorists surrendered to Turkish security forces, the National Defense Ministry said on Friday.

Read more: 4 PKK terrorists 'neutralized' in eastern Turkey