Recep Tayyip Erdogan has arrived in the United States for a nuclear security summit.
However, he will not have a formal meeting with his counterpart, US President Barack Obama.
Obama will only have informal talks with Erdogan in Washington this week.
It has been announced that the Turkish president will have a formal meeting with US Vice President Joe Biden.
The US has also ordered the families of all military and diplomatic personnel to leave southern Turkey due to security concerns.
It has also warned its citizens not to travel to the region.
The White House has dismissed suggestions that all three factors amount to a snub for Ankara:
“The decision to do this, the timing of it was completely considered independently of the nuclear security summit and the visit here to Washington by Turkish officials. Absolutely no connection to that whatsoever. This was done, as it should be, based on the security threat and our concern about the safety for American citizens”, spokesperson John Kirby told reporters.
Erdogan will be one of 50 world leaders attending the nuclear security summit in Washington on Thursday and Friday.
Although allies, Washington and Ankara are sharply divided over the Kurdish militia in northern Syria.
Erdogan wants the US authorities to take steps against a network of schools run by a movement affiliated with the Islamic preacher Fetullah Gulen.
The US State Department has warned its citizens against travelling to southeastern Turkey.
It also warned of “increased threats from terrorist groups throughout Turkey”.
The White House has also ordered the families of US military and diplomatic personnel to leave parts of southern Turkey.
“This also includes continuing to intensify our coordination on key aspects of our counter-ISIL stragety, including ramped-up efforts to secure the Turkey-Syria border.” – White House spokesperson Josh Earnest tells reporters the US has a lot of important work to do with Turkey.
“The real money launderers are there (in the United States). Have the authorities taken any steps towards them?” – Recep Tayyip Erdogan, referring to Fetullah Gulen’s network.