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The Turkish authorities on Saturday halted American-led strike missions against the Islamic State that are flying from the Incirlik air base, the first major impact of the coup on the broader allied campaign against the group.

“At this time, Turkish authorities are not permitting aircraft to depart Incirlik,” an American military official said on Saturday morning.

The American official said the United States was seeking an explanation for the decision and other details. The move may reflect a desire by Turkey to control its airspace for a time today, as opposed to any shift on its policy toward ISIS.

Pentagon officials had said late Friday that the unfolding coup had not affected the bombing and surveillance missions from Incirlik, the opening of which to the allies has enabled commanders to accelerate and intensify airstrikes against Islamic State targets in Iraq and Syria.

President Obama planned to convene a meeting Saturday morning with his national security and foreign policy team about Turkey.