Police detained 70 PKK suspects early Monday as part of air-supported counter-terror operations in Istanbul.

Simultaneous operations were carried out at 104 different locations, including Okmeydanı district, security sources said.

Police searched houses used by suspected PKK terrorists throughout the city.

A pump-rifle, pistol, blank firing gun, bullets and PKK documents were seized, including digital equipment.

The suspects were brought to Haseki Hospital for health checkup and were then transferred to Istanbul Police Headquarters for interrogation.

Police said operations are underway to find 34 other suspects.

More than 1,200 victims, including security personnel and civilians, have lost their lives since the PKK - listed as a terrorist organization by Turkey, the U.S., and EU - resumed its decades-old armed campaign against the Turkish state in July 2015.