HOUGHTON — The Houghton County Sheriff’s Office reported Friday that a 12-year-old boy pulled from the waters of Lake Superior earlier this week died while being transported for treatment.

The boy, from Commerce, Mich., was trying to rescue his 8-year-old sister, according to the Houghton Daily Mining Gazette.

On Tuesday, the sheriff’s office said the 12-year-old was airlifted to the University of Michigan Children’s Hospital, where his condition was unknown.

Deputies were called about 2:33 p.m. Tuesday to Big Traverse Beach in Schoolcraft Township on a report of four people drowning in Lake Superior.

An 8-year-old girl had been swept out by the current and when three others tried to save her, they were taken out by the current as well. Several people on the beach assisted with inflatable tubes and were able to get all four people to shore.

The 12-year-old was treated by first responders and sent to Aspirus Keweenaw Hospital by ambulance, the sheriff’s office said. In the process of being transported to the airport, he succumbed to his injuries.

The name of the boy was not being released.