An Alaska Airlines jetliner skidded off a runway after landing at Seattle-Tacoma International Airport, and four of the 82 people aboard sustained minor injuries, officials said.

The accident occurred late Sunday as Flight 187 from Tucson, Ariz., landed, and resulted in a 15-minute closure of the airport, authorities said.

The extent of damage to the Boeing 727 was not determined, although there was no fire and no damage to the fuselage was visible.

The passengers used emergency chutes to evacuate, said Port of Seattle Police spokeswoman Margo Spellman.