The Obama administration described the American Embassy in the Turkish capital, Ankara, on Friday as a "terrorist" attack.
"it’s characterized obviously as a terrorist attack on our embassy in Ankara," said Vice President Joe Biden while meeting with German Chancellor Angela Merkel in Berlin.
"The act -- a suicide bombing on the perimeter of an embassy is by definition an act of terror," White House spokesman Jay Carney. "It is a terrorist attack. However, we do not know at this point who is responsible or the motivations behind the attack. The attack itself is clearly an act of terror."
Carney said "we strongly condemn" the attack.
"We'll work closely and are working closely with Turkish authorities to investigate the incident and bring the perpetrators to justice," Carney said. "Now, our thoughts and prayers go out to the families of those killed and injured, and we greatly appreciate the support we have received from our Turkish friends in responding to this terrible tragedy. Turkey remains one of our strongest partners in the region, our NATO ally. We have worked shoulder-to-shoulder with the Turks to counter terror threats...This will only strengthen our resolve."