WASHINGTON, May 18 (WNM staff) - U.S. diplomats warned Saturday that commercial airliners flying over the wider Persian Gulf faced a risk of being “misidentified” amid heightened tensions between the U.S. and Iran, the AP reports.

The warning relayed by U.S. diplomatic posts from the Federal Aviation Administration came as Lloyd’s of London warned of increasing risks to maritime shipping in the region.

30 years ago, the US had mistaken an Iranian passenger jet for a warplane in the wake of a naval battle with Tehran, killing all 290 people aboard.