U.S. Embassy in Turkey shut for unspecified 'security threat'

The U.S. Embassy in Turkey will be closed on Monday due to an unspecified security threat.

A statement posted on the embassy's web page on Sunday urged U.S. citizens to avoid the embassy in Ankara as well as large crowds and to 'keep a low profile.'

The statement said the embassy will be closed "due to a security threat. The Embassy will announce its reopening, once it resumes services." It did not give details on the threat.

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In 2013, a suicide bomber detonated an explosive in front of the U.S. Embassy in Ankara, the Turkish capital. He killed himself and a Turkish guard. Turkish officials blamed the attack on domestic leftists.