• Updated story: Lifeguard who rescued 10-year-old boy from drowning: 'I knew there was something wrong'

Lifeguards and a "Good Samaritan" managed to save a 10-year-old boy’s life Tuesday after he was found floating in Washtenaw County's Independence Lake with no pulse and not breathing.

The Washtenaw County Sheriff’s Office reported the boy was swimming in the lake at 4:30 p.m. Tuesday with other children. Some time later, an adult called the children to shore and while they were swimming in the boy was found floating in the water, according to police.

The boy was unresponsive and the children pulled him into shore and alerted adults, police stated. The boy had no pulse and was not breathing, according to the report.

Independence Lake lifeguards and an adult nearby with medical experience performed CPR on the boy for several minutes and were able to bring him back, police stated. He was transported to the University of Michigan Hospital by Huron Valley Ambulance and is in critical but stable condition.

Independence Lake is located at 3200 Jennings Road in Webster Township, north of Ann Arbor. It's not the first near-drowning in Independence Lake — in 2010, a 3-year-old girl nearly died after being submerged in the water for about five minutes.

Update at 10:47 a.m.: Joyce Williams, spokeswoman for Huron Valley Ambulance, said Dexter Area Firefighters and a paramedic stationed in Dexter responded to the lake after being notified of the near-drowning. The boy was transported to Mott Children's Hospital in unstable condition, Williams said, but he has since stabilized.

Update at 11:42 a.m.: Emma Jackson, spokeswoman for Ypsilanti Public Schools, confirmed the boy is a student at Erickson Elementary School and was at the lake as a part of a school event. The school district is still investigating what exactly happened Tuesday afternoon and Jackson couldn’t release more detail on what the event was.

Jackson said Principal Kevin Carney had met with the classes involved with the event and gave them all the information on the boy’s status he could.

“We need to just keep the family in our thoughts and prayers,” she said.

Jackson could not give any update on the boy’s condition Wednesday.

Update at 11:52 a.m.: The 10-year-old boy was a part of a group of about 50 children from Erickson Elementary School in Ypsilanti that travel to Independence Lake County Park annually for a three-day field trip the week after Memorial Day. The students do activities throughout the afternoon and swim at the end of the day. Independence Lake Supervisor Brian Machemer said he was one of the two lifeguards on duty when the incident happened, and performed CPR to save the boy’s life.

Check back to this story for more information as it becomes available.

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Health and environment reporter Amy Biolchini contributed to this report.

Kyle Feldscher covers cops and courts for AnnArbor.com. He can be reached at kylefeldscher@annarbor.com or you can follow him on Twitter.