The star was removed by security guards after she was accused of being intoxicated by staff at Luton Airport in the U.K., editors at the Sun on Sunday report.

Fox, 49, was waiting to board the Wizz Air flight to Lithuania on Friday (23Oct15) when she allegedly began arguing with staff after being charged $48 (£30) to take her bag onboard.

"A passenger was offloaded due to abusive behaviour towards staff," says a spokesperson for the airline. "The passenger seemed to be intoxicated. The effect can be worse in the air."

"She did not delay the flight. She paid $48 (£30)," a representative for Fox tells the newspaper. "Then she was explaining she had priority boarding, yet economy was boarding before her. A girl working for Wizz apologised and she caught a later flight."

The singer was due to perform at the Siemens Arena in Vilnius, Lithuania on Saturday (24Oct15). She later told fans via that the concert went well, writing, "Amazing sold out show last night. Thank you Lithuania. Lovely people. Love Sam xx".