A suicide bomb attack at the U.S. Embassy in Ankara, killed one Turkish security guard along with the attacker, Ankara Gov. Aladdin Yüksel said.
A woman, who was at the embassy for business, was also injured, Yüksel said.
The explosion occurred at the entrance used by the embassy personnel and their visitors, CNNTürk reported. A security guard at the X-ray machine at the entrance was killed in the explosion that occurred as the suspected suicide bomber was passing through the machine, the report said.
Security cameras were not recording at the moment of the blast due to a power outage in the area, according to claims.
It is not clear whether or not the embassy building was the only building experiencing the outage, Hürriyet reported on its website.
Officials from the company that is responsible for the the capital's power are reportedly at the scene as well.
Another reporter told NTV, citing U.S. embassy personnel, that there was no damage inside the embassy.
Ambulances and firefighters have been dispatched to the area.
All U.S. Embassy personnel have been taken to saferooms in the embassy, a reporter from daily Star told NTV.
The undersecretary of the Foreign Ministry, Feridun Sinirlio?lu, was reportedly bound for the embassy. Ankara Gov. Alaaddin Yüksel also came to the scene of the blast for inspections.
On Sept. 11, 2012, the anniversary of the 2001 attacks by al-Qaeda on New York and Washington, heavily armed militants stormed the U.S. consulate in the eastern Libyan city of Benghazi and attacked a nearby CIA safehouse.
Four Americans died in the assault, including U.S. Ambassador Chris Stevens, and President Barack Obama's domestic opponents attacked the administration's handling of both security prior to the attack and public statements afterwards.