SINGAPORE - Twenty-two passengers and crew were injured when an Airbus A380 plane operated by Singapore Airlines (SIA) and travelling from the city-state to Mumbai hit sudden turbulence during descent, the carrier said Sunday. The extent of the injuries during the turbulence aboard Flight SQ 424 on Saturday evening were not given, but SIA said all the injured were attended to by medical personnel on arrival at Mumbai Airport. Eight passengers and 14 crew were hurt, the airline said in a statement. Ten of the injured crew members required hospitalisation but all have been discharged, SIA said.