Istanbul police headquarters has sent a warning to all security units in Istanbul for possible bomb attacks on Yenikapı, Haciosman, Osmanbey, Taksim metro lines and metrobus stops.
The warning paper, signed by deputy chief of Istanbul police on July 25, was confirmed on Monday.
It is said in the warning that they received intelligence information that the attacks will continue.
“According to information received from trusted sources, terror organisations may carry out bomb attacks in Yenikapi, Haciosman, Osmanbey, Taksim metros and other metrobus stops and attack Istanbul police headquarters,” said in a written statement.
On July 20, a suicide attack was carried out in the Suruc border district of Turkey’s southeastern Sanliurfa province that killed 32 people in the garden of the Amara Culture Centre where members of the pro-Kurdish Federation of Socialist Youth Associations (SGDF) gathered for a press meeting, before planning to cross into Syria to support the people of Kobani.
Since the Suruc attack, which is believed to conducted by ISIS, thousands of Turkish security forces and gendarmerie have been carrying out nationwide anti-terrorism operations across Turkey.
Turkish security forces have detained 1,050 suspects across 34 Turkish provinces since the nationwide "anti-terrorist operations" in the country began, official sources said on Monday.
Most of the suspects allegedly belonged to ISIS, PKK and the far-left Revolutionary People's Liberation Party-Front (DHKP-C), the Turkish Prime Minister’s Office of Public Diplomacy said in a statement on Monday.
However, the attacks by militant groups against security forces claimed lives of four police officers and four soldiers since the bomb attack in Suruc.
Istanbul police headquarters added that considering recent terror activities, the attacks may be carried out on other metro lines, tramways, security forces and their vehicles, police headquarters and their boardings, public buildings and crowded points in the province.