Two suspects were detained in relation to the shooting outside the U.S. Embassy in the Turkish capital Ankara, the state-run Anadolu News Agency said on Monday.
A search to nab the suspects involved in the attack was launched soon after the attack, resulting in the arrest of two, the source, who spoke on condition of anonymity due to restrictions on talking to the media, said.
Ankara governor's office named the suspects as Ahmet Çelikten, 39, and Osman Gündaş, 38, saying they had confessed. They were apprehended along with a 9-millimeter gun and a vehicle with Ankara license plates.
The statement said Çelikten had escaped prison and Gündas had several crimes under his belt, including car theft, drugs, threats and injury.
The governor's office said they were investigating the suspects' links.
The U.S. Embassy came under brief gunfire early on Monday but nobody was hurt in the incident, which coincides with increased tensions between the two NATO allies over the trial of a U.S. pastor in Turkey.
Gunshots were fired at the US embassy early Monday but there were no casualties, Turkish and US officials confirmed.
The incident took place at 5:30 am (0230 GMT). Initial investigations showed that three bullets hit an iron gate and glass panel of the security guards' post, the statement said.
Earlier, Turkey's presidential aide had condemned the attack on U.S. Embassy and said all foreign missions in the country remain safe.
In a Twitter post, Ibrahim Kalın [President Recep Tayyip Erdoğan's spokesman] said: "We condemn the attack on the U.S. embassy. Turkey is a safe country and all foreign missions remain safe under the law. The incident is being investigated and will be clarified as soon as possible."
Kalın also described the incident as "an attempt to create chaos.
The incident comes in the midst of an escalating diplomatic and trade row between Ankara and Washington over the detention in Turkey of a US Christian clergyman.
US embassy spokesman David Gainer said "we can confirm a security incident took place at the US embassy early this morning," but said too that there were no injuries.
"We thank the Turkish National Police for their rapid response," he added.
Foreign missions are closed this week for Eid al-Adha celebrations.
Ömer Çelik, a spokesman for the ruling Justice and Development (AK) Party, called the incident an "open provocation," according to state news agency Anadolu.
On Friday, a Turkish court refused to release US pastor Andrew Brunson from house arrest and Washington warned of more sanctions. Brunson faces terrorism-related charges.
The NATO allies have slapped tariffs on each other's imports as well as imposed sanctions on cabinet ministers.
