The U.S. Embassy and its consulates in Turkey will be closed after someone approached the embassy in Ankara and fired a gun.
The embassy said the individual, who fired a gun at about 3:50 a.m. local time, was detained by police.
The state-run Anadolu Agency says the detained man took out a shotgun hidden in his coat and fired around eight shots. He was overpowered by the embassy's security guards.
There were no injuries in the incident, which occurred several hours after Russian Ambassador to Turkey Andrei Karlov was shot dead at a photo exhibit in Ankara by an off-duty policeman who condemned Russia's military role in Syria.
Along with the embassy, the U.S. consulates in Istanbul and the southern city of Adana will also be closed on December 20.
Based on reporting by AP and Reuters