Emergency responders treated 36 patients, with 11 people taken to local hospitals in serious condition, the Honolulu Star-Advertiser reported.

Another nine patients were in stable condition with injuries ranging from serious head injuries, lacerations, bruising, and loss of consciousness, the newspaper said.

“Flight HA35 from Phoenix to Honolulu encountered severe turbulence and landed safely in Honolulu at 10.50am today,” the airline said in a statement posted to Twitter.

“Medical care was provided to several guests and crew members at the airport for minor injuries while some were swiftly transported to local hospitals for further care.”

An airline spokesman told the Star-Advertiser that the Airbus A330 aircraft, which was carrying 278 passengers and 10 crew members encountered severe turbulence as it approached the islands.