(The Center Square) – Four of six crew members have been confirmed dead as a result of Thursday’s crash of an American refueling tanker.

The details that have been released regarding the crash are few as of Friday morning. It involved two aircraft, was not the result of hostile or friendly fire and occurred in friendly airspace over western Iraq, according to a statement from U.S. Central Command. The KC-135 refueling aircraft crashed, while another aircraft was able to land safely.

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