The U.S. embassy in Turkey will be closed Monday due to an unspecified security threat, officials said.
The embassy in Ankara was closed on Monday as police in the Turkish Black Sea coastal city of Samsun detained four Islamic State suspects while investigating a possible attack plot involving the American facility. The operation came a day after the local USA embassy was closed for what it said were unspecified security reasons. It also advised citizens to "keep a low profile".
A USA embassy spokesman said the embassy would be closed for visa and American citizen services specifically.
The main aim of the Turkish forces is to establish security and stability along Turkey's borders as well as to protect Syrians from terrorist oppression and cruelty.
The detained suspects, who were foreigners, were found allegedly recruiting people to the dreaded terror group and were in contact with people in the conflict zones of Syria and Iraq.
Turkish Deputy Prime Minister Bekir Bozdag said the US embassy had shared intelligence with Turkey's intelligence and security authorities, leading to "important results". Turkish police have intensified operation against IS cells across the country. A series of terror attacks in 2015 and 2016 as well as one in 2017 were blamed on I.S. and outlawed Kurdish militants. An attack at a luxury Istanbul nightclub during New Year celebrations on January 1, 2017, killed 39 people.