United States special envoy for climate John Kerry was spotted without a mask, while he was on board a flight from Boston to Washington DC, reported The Hill. The photograph of Kerry reading a book with his mask hanging off his ear was shared on social media on Wednesday.
Former US president Donald Trump's son, Donald Trump Jr, also shared the photograph, who dubbed the climate envoy as a "liberal hypocrite."
"His mask is off & he isn’t eating or drinking. Will he be fined for breaking the law & banned from flying @AmericanAir like regular citizens would be?" Trump Jr tweeted.
Responding to the criticism he received, Kerry on Wednesday tweeted, "Let’s be clear: If I dropped my mask to one ear on a flight, it was momentary."
"I wear my mask because it saves lives and stops the spread. It’s what the science tells us to do," he added.
American Airlines too responded to a tweet about the picture. It said, "Masks are required on board our aircraft, and we are looking into this."
As per coronavirus-related rules, everyone above the age of two needs to wear mask on flights of airlines under federal guidance.