Police detained a man who fired shots into the air in front of the American embassy early Tuesday, only hours after the Russian ambassador to Ankara was assassinated.

Axar.az reports citing to Daily Sabah News.

Authorities said Şahin S. approached the embassy in Ankara's Çankaya district and fired eight to nine times into the air with pump-action shot gun he had concealed in his coat.

An investigation is underway and extraordinary security measures have been taken around the area, police sources said.

The US embassy in Ankara and consulates in Istanbul and Adana were closed for normal operations on Tuesday after the incident.

Russian envoy Andrey Karlov was killed at an art exhibition in the Çankaya district only hours before the incident, when a gunman targeted the diplomat.

The envoy, who was delivering a speech at an opening ceremony, was taken to a hospital but was later pronounced dead.

Police killed the assailant in an operation that lasted approximately 15 minutes.