A 6-year-old northeast Georgia boy who was underwater in a pool for 10 minutes has died, authorities said.

Mark “TJ” Phonsavanh of Demorest was pronounced dead just before 11 a.m. Monday at Children’s Healthcare of Atlanta at Scottish Rite, according to the Habersham County coroner.

RELATED: 6-year-old in critical condition after near-drowning incident

The boy was taken to the hospital in critical condition after he was pulled from the pool Sunday evening.

Deputies were sent to a home in Mount Airy just after 6 p.m., authorities said. By the time they arrived, bystanders had gotten the child out of the pool.

In other news: 

Witnesses said a person was on a personal watercraft and was trying to pull it onto a boat ramp at Shoal Creek Park when the watercraft flipped over around 8 p.m.