Yoko Ono, wife of late Beatle John Lennon, has been rushed to hospital.

CBS reports that Ono was taken from her Upper West Side home Friday evening for what was initially thought to be a stroke.

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John Lennon and Yoko Ono. Photo: AAP

Her publicist was later quoted as saying she was suffering from the flu.

Ono, 83, lives at the Dakota at 72nd Street and Central Park West. A police source says she was rushed to Mount Sinai West Hospital.

Ono was unconscious when she was taken to the hospital at 9:05 p.m., the FDNY said.

In a Daily Mail report published late Friday, Ono publicist Elliot Mintz said Ono had not had a stroke, and was actually suffering from a bout of the flu.

Mintz told the newspaper Ono was hospitalised at the advice of her doctor.

Ono has lived in the Dakota since 1973. Her husband, John Lennon, was shot and killed in front of the building on Dec. 8, 1980.