SEATTLE -- Guests at a Seattle boutique hotel were driven from their rooms by fumes that were later discovered to be pepper spray.

Emergency crews responded outside the Hotel Andra on Fourth Avenue and Virginia Street Sunday morning after guests complained of burning eyes and throats.

One guest said he and his wife realized the pepper spray was coming into their room through the vents.

"It's scary. We ended up on the roof for a little while then we made it down through a hallway," said Pete Naumovski.

Emergency crews evacuated three floors and treated five people at the scene.

The hotel said the incident occurred after a guest left a can of pepper spray, designed to fend off bears, in one of the rooms.

A housekeeper accidentally discharged it while bagging it to be put in the hotel's lost and found area.

No one was seriously injured.