U.S. Special Presidential Envoy for Climate John Kerry was spotted on a flight not wearing his mask in violation of President Biden’s airline mask mandate.

Kerry was not eating or drinking while his mask was off, one of the few instances passengers are allowed to lower their masks on flights, according to the Tennessee Star, which obtained a photograph of Kerry on the flight. Kerry was photographed reading a book in his first-class seat with his mask hanging from one ear on American Airlines flight AA2129 from Boston to Washington, D.C., just before takeoff.