Summary:
Singapore Airlines has said that a passenger plane that landed in Hong Kong was unable to return to Singapore after a warning.

Full article:
(CNN) -- A Singapore Airlines flight to Hong Kong had to turn back in mid-flight Friday after the pilots received an alert about a problem with a cargo door on the plane, the company said. The aircraft, an Airbus A380 superjumbo, returned to Singapore's Changi airport on Friday afternoon "as a result of a cockpit warning relating to a cargo door," the airline said in an e-mailed statement. Flight SQ 866 landed safely back at Changi at 2:20 p.m. local time, Singapore Airlines said, adding that passengers would be transferred to a replacement flight to Hong Kong. The airline didn't provide further details about the incident, nor did it immediately respond to a question from CNN about whether the cargo door issue affected cabin pressure. The replacement aircraft was expected to arrive in Hong Kong at 8:40 p.m., more than three and a half hours after the original scheduled arrival time, according to the Singapore Airlines website. The double-decker A380 is capable of carrying more passengers than any other commercial aircraft. CNN's Euan McKirdy contributed to this report.