US Airways says it is investigating the removal of a blind man and his service dog from a flight at Philadelphia International Airport.

WPVI-TV says Albert Rizzi, who is legally blind, says he was told that his guide dog had to stay under a seat during Wednesday night's flight to Long Island.

Rizzi said the dog became restless after a flight delay and curled up under his legs, and he was told that the plane would have to turn around if it wasn't under a seat.

US Airways told the station that Rizzi became verbally abusive and other passengers became argumentative, sparking safety concerns.

The flight was eventually cancelled, and Rizzi and some other passengers accepted a US Airways offer to transport passengers by bus to Islip, N.Y.