2 burned as van explodes in Yelm

YELM, Wash. -- Two people were seriously burned after an explosion and fire occurred in their van during a fueling mishap, Thurston County dispatchers said.

The explosion happened at a Yelm trailer park in the 17100 block of 153rd Ave. SE, but the two were driven to an area near Yelm High School, nearly nine miles away, dispatchers said.

A medical helicopter was set to land at the high school and airlift the two burned patients to a local hospital, dispatchers said.

Updates to follow as more details become available