The U.S. Department of State has declared the Istanbul bombing an act of terrorism.
“The United States strongly condemns the terrorist attack today in Sultanahmet Square in Istanbul, Turkey. We extend our deepest condolences to the families of those killed, and wish a quick and full recovery to those injured.
The United States reaffirms our strong commitment to work with Turkey, a NATO Ally and valued member of the Counter-ISIL Coalition, to combat the shared threat of terrorism.”
Read the full press statement here: http://www.state.gov/r/pa/prs/ps/2016/01/251124.htm