[UPDATE at 9:25 p.m.]: Approximately 12 people were evacuated from the building and there were no injuries or medical issues reported. Seattle firefighters used air monitoring equipment and have deemed the building safe to re-enter.

[ORIGINAL POST]: The Seattle Fire Department is responding to a hazardous materials incident at the Physics/Astronomy Building. A hydrogen spill in Room 009 has been contained, but the response continues and the building has been evacuated. Please avoid the area.

Updates will be posted here as more information becomes available.