Turkey is not part of the US visa waiver program; Turkish nationals are required to apply for a non-immigrant visa through US missions.
Non-immigrant visas include those for business, tourism and study, as well as more specialist visas, including journalist and diplomatic visas.
The US Department of State had no updated information regarding Turkish visa applications, and appeared to still be offering interviews for visa applicants.
The US' National and Tourist Office doesn't provide a breakdown of the total number of Turkish visitors to the US on its website.
Direct flights to the US from Turkish cities remained purchasable from Turkish airlines; there are no US carriers that fly direct to Turkey.
The United States said it was "deeply disturbed" by the consulate employee's arrest, after he was charged over alleged links to Pennsylvania-based opposition cleric Fethullah Gulen.
Turkey, a NATO member, has pushed for the United States to extradite Gulen, who it blames for last summer's failed coup, although Gulen himself denies any involvement.
Turkey's ambassador to Washington, Serdar Kılıç, told reporters in July that he sensed a "willingness" on the part of US officials to move forward on an extradition request against the US-based cleric, one year after the failed coup attempt the Turkish government has accused Gulen of orchestrating.
However Kılıç also expressed frustration with the slow pace of those proceedings, and suggested the US administration could take further steps outside the extradition process to censure Gulen.
Ankara has previously jailed US citizens it accuses of having Gulenist sympathies. American pastor Andrew Brunson was detained a year ago, following the coup, on charges of trying to overthrow the Turkish government and its constitution. Brunson denies the charges.
US President Donald Trump raised the issue of Brunson's imprisonment in Turkey three times during a meeting with the Turkish president in May when the two leaders met for the first time, according to the American Center for Law and Justice (ACLJ).