Anaheim police said Monday that everyone had been evacuated from the Mickey & Friends Parking Structure.
Seven people, all Disney employees, were treated for smoke inhalation, but only one was taken to a hospital and none of the injuries were life-threatening, Anaheim fire Sgt. Daron Wyatt said.More news: Tributes pour in for ex-UGA, NFL player killed in fire
The fire was reported just before 5 p.m. and was out 30 minutes later. Four vehicles were completely destroyed and four others sustained major damage, authorities said.
Hundreds of park visitors and employees were stuck outside the structure unable to get to their cars until the evacuation ended after about two hours.More news: Nathan Dyer: Swansea City winger out for season with Achilles injury
People were allowed to return to their vehicles at around 7 p.m., Anaheim police said. "As soon as we saw it we turned around because they told us to leave". "I think it was one flight below our auto", said Adam Habie of Placentia.
The Disney parks remained open as usual until 8 p.m. Disney representatives referred questions about the blaze to fire officials. "And then we left and they wouldn't let us go to the thing, so made a decision to stay a little bit longer at Disneyland, have a good time".More news: UFC 208: Holly Holm vs Germaine de Randamie
The cause of the fire remains under investigation. No foul play was suspected.