2 teenage girls killed after jet ski collides with boat

Two teenagers were killed after their jet ski crashed into a boat on an Illinois lake.

On Tuesday, June 18, the teens, ages 13 and 16, were riding a jet ski when it crashed into a Sea Ray boat with four people on board on Lake Marie, near Antioch, Wash. 'Illinois, according to a social media post from the Lake County Sheriff's Office. The Lake County Sheriff's Office Marine Unit and Patrol Division along with the Antioch Fire Protection District responded to the scene around 5:15 p.m. local time.

“They were heading north near the channel leading to Grass Lake, just north of the Elime Road peninsula. At the same time, a Sea Ray Cabin Cruiser, operated by a 55-year-old Antioch man, was heading west in the same area, approaching the Gass Lake Canal,” the post states.

Lake County Sheriff's Office Chief Deputy Christopher Covelli confirmed the 16-year-old was from Lake Forest, California, and the 13-year-old was from Long Grove. The preliminary investigation revealed that the 16-year-old was operating the jet ski. and the 13-year-old was the passenger.

Representatives for the Lake County Sheriff's Office did not immediately respond to PEOPLE's request for comment.

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According to the post, the Lake County Sheriff's Office said both girls were wearing life jackets before losing consciousness and being thrown into the water upon impact.

After aid was administered and 911 was called, the teens were both transported to Advocate Condell Medical Center where they were both pronounced dead shortly after arrival, the sheriff's office said.

The accident is currently under investigation by the Lake County Sheriff's Office Marine Unit and the Illinois Conservation Police. The Lake County Coroner's Office has scheduled an autopsy for June 20, according to the sheriff's office.