Report: RPG fired near Istanbul's main police headquarters

A Turkish police officer secures a road near Istanbul's main police headquarters, Friday, Jan. 20, 2017. A Turkish media report says a rocket-propelled grenade was fired near the headquarters but that it missed the building. There was no further information on the incident, which comes at a time when Turkey has suffered a series of deadly attacks carried out either by the Islamic State group or Kurdish militants. (AP Photo/Emrah Gurel) (The Associated Press)

Turkish police officers secure a road near Istanbul's main police headquarters, Friday, Jan. 20, 2017. A Turkish media report says a rocket-propelled grenade was fired near the headquarters but that it missed the building. There was no further information on the incident, which comes at a time when Turkey has suffered a series of deadly attacks carried out either by the Islamic State group or Kurdish militants. (AP Photo/Emrah Gurel) (The Associated Press)

A Turkish police officer secures a road near Istanbul's main police headquarters, Friday, Jan. 20, 2017. A Turkish media report says a rocket-propelled grenade was fired near the headquarters but that it missed the building. There was no further information on the incident, which comes at a time when Turkey has suffered a series of deadly attacks carried out either by the Islamic State group or Kurdish militants.(AP Photo/Emrah Gurel) (The Associated Press)