Reports from Ankara say shots were fired at a security booth outside of the U.S. Embassy early on August 20, but U.S. officials say nobody was hurt.
Turkish news agencies say a handgun was fired four or five times from a moving white car as it sped past one of the embassy's gates.
Police in Ankara said on August 20 that they were searching for the car involved in the incident.
The U.S. Embassy is closed this week as Turkey celebrates the Muslim holiday of Eid al-Adha.