From AP:
Three American fighter jets were mistakenly downed by friendly Kuwaiti fire Monday during an Iranian air assault, the U.S. military said. All six crew members safely ejected from the F-15E Strike Eagles and were in stable condition after being recovered, the U.S. said. An attack by Iranian aircraft, missiles and drones was underway at the time the planes were shot down.
Iranian state television claimed that Iran had targeted one of the U.S. planes that crashed in Kuwait without elaborating.