A plane traveling from San Francisco to London diverted to Vancouver after members of the crew reported feeling ill, British Airways said Tuesday.

Vancouver Coastal Health spokesman Gavin Wilson said 25 crew members were taken to three Vancouver hospitals as a precautionary measure, assessed and released.

"British Airways has confirmed they were all crew members," he said.

No passengers were taken to the hospital.

All 25 were released within hours, said Wilson, who added that initial reports that the crew had been treated for smoke inhalation were being revised.

"It's a rapidly changing situation and right now, I can't confirm that it was smoke inhalation that actually brought them in."

The airline said it was investigating what caused the problem.

The Airbus A380 took off around 7 p.m. (10 p.m. EDT) Monday and landed in Vancouver several hours later.

Vancouver Airport Authority said Flight BA286 was carrying about 400 passengers.