The U.S. Embassy was closed on Monday over an unspecified security threat.
The Anadolu Agency said police detained four suspects on Monday — all of them Iraqi nationals. Two of them were detained on a bus at a security check on a highway linking the Black Sea city of Samsun to Ankara. Two others were detained in Samsun.
Security was high outside the U.S. embassy on Monday, and police searched pedestrians before allowing them to enter a street where the main gate is located.
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