Major airlines from around the world are rerouting flights to avoid parts of the Middle East after Iran shot down a U.S. drone. The Federal Aviation Administration barred American-registered aircraft from flying over parts of the Persian Gulf and the Gulf of Oman, the AP reports. Iran’s Revolutionary Guard said it shot down a U.S. Navy RQ-4A Global Hawk that had entered Iran’s airspace early Thursday morning, but the United States claimed it was shot down in an “unprovoked attack” in international airspace. The FAA previously cautioned commercial aircraft from flying over the region due to the potential for Iranian anti-aircraft gunners to mistake them for military aircraft. United Airlines has suspended service between Newark, New Jersey, and Mumbai, India, while Australia’s Qantas, Dutch airline KLM, and Germany’s Lufthansa also said they’d avoid the region.