A JetBlue flight from the small Caribbean nation of Curaçao halted its ascent to avoid colliding with a US air force refueling tanker on Friday, and the pilot blamed the military plane for crossing his path.

“We almost had a midair collision up here,” the JetBlue pilot said, according to a recording of his conversation with air traffic control. “They passed directly in our flight path … They don’t have their transponder turned on, it’s outrageous.”