A flight attendant needed surgery and 4 others were also injured by severe turbulence on a flight from Singapore to London

• A British Airways flight turned around after encountering severe turbulence, The Sun reported.
• A source told Insider a crew member needed surgery on her ankle after the turbulence.
• The airline said the flight returned to Singapore as a precaution.

A British Airways flight was forced to turn back when it ran into severe turbulence at 30,000 feet, leaving one crew member needing surgery. 

The Sun first reported that BA flight 12 from Singapore Changi to London Heathrow Airport on Friday encountered severe turbulence over the Bay of Bengal, injuring five flight attendants.