“Three teenagers were injured in the Yelm area early Saturday morning after they attempted to make a bomb using fireworks and a plastic bag, according to S.E. Thurston Fire & EMS.

Also according to the fire district:

The bag exploded as one of the teens attempted to insert a fuse. The 15-year-old boy who was holding the bag suffered severe injuries to his face, hands and chest. He was flown by helicopter to Harborview Medical Center in Seattle.

The other two teens suffered facial injuries and hearing loss. Both were taken to Providence St. Peter Hospital in Olympia. Police werent releasing the teens names Saturday.

The incident is the latest of several in which Yelm-area youths have been injured in the past week.

‘It has been horrible. That was the fifth airlift since Tuesday,’ S.E. Thurston Fire & EMS Fire Chief Rita Hutcheson said Saturday.

On Thursday morning, twin 9-year-old Yelm girls suffered smoke inhalation and were flown by helicopter to Harborview Medical Center after their house burned…

On Tuesday morning, two 16-year-old girls were injured when the car they were in crossed the center line and collided with a truck in Yelm, according to the Washington State Patrol,” quoting the Tacoma News Tribune.