Teen missing, 2 seriously hurt in 'mass casualty' boating incident at Lake Austin, authorities say

AUSTIN, Texas -- One person was airlifted to a hospital and another was taken by ambulance with serious injuries after a boat ran aground at Lake Austin in Texas, Sunday, authorities said.

According to CE-BAR Fire Asst. Chief Campbell, who spoke to the media on Sunday night, the incident was a single-boat accident. The boaters were traveling downstream when they went over a wake from another boat. They lost control of their boat, bounced to the right, ejected at least one person, and then hit the bank on the river's right side, he said at the news conference.

According to the Austin-Travis County Emergency Medical Services (ATCEMS), in addition to the two people transported to a hospital with serious injuries, two others were described as having "potentially serious injuries," and a teen was listed as "missing/unable to locate," the ATCEMS said on X (formally known as Twitter). Two people refused transport to local hospitals, the ATCEMS said.

Authorities declared the accident a Level-5 mass casualty incident.

The incident took place in a remote area and required the use of jet skis to move those who were injured. The responders are in "recovery mode," according to ATCEMS.

This is a developing story.

Marilyn Heck contributed to this story.