SEA-TAC AIRPORT, Wash. -- At least 32 people were treated by medics after fumes from a de-icing chemical got into the cabin of an Alaska Airlines jet at Sea-Tac Airport on Wednesday.

Airline spokeswoman Terri-Ann Betancourt said none of the injuries appear to be serious.

Six crew members and an airline employee were taken to Highline Community Hospital, but all of the 26 passengers who required treatment were checked out by medics at the scene.

Flight 528, which was scheduled to fly to Burbank, was evacuated about 7:30 a.m. as the chemical leaked into the cabin of the Boeing 737-800 jetliner.

All 143 passengers decided to board another plane and continue their flight. It took off at 11:03 and was scheduled to arrive about 1 p.m.

The incident brought a Port of Seattle emergency response of fire trucks and ambulances to gate N7 at the north satellite at the airport.

Airline spokeswoman Caroline Boren said it's unknown how the fumes entered the plane. She said doors are normally closed during deicing and the ventilation system is running.

Boren said there have been no other deicer problems in a week of snow at the airport.

"We haven't had a situation like this since the weather event," she said. "It's highly unusual."