The Turkish government says a request by the US Secretary of State for its prime minister to delay a planned visit to Gaza is objectionable.
John Kerry said during his visit to Istanbul that it would be better to wait for "the right conditions".
Turkey's deputy prime minister Bülent Arınç has told reporters that Mr Kerry's suggestion was "objectionable and incorrect".
The Turkish government doesn't like America telling it what to do or even suggesting what it should do, but it is notable the the objection was not delivered by Prime Minister Recep Tayyip Erdogan, the BBC reports.
The US is concerned that a visit by Mr Erdogan to the Hamas-run territory of Gaza would damage America's priority - reconciliation between its allies Turkey and Israel.
