A 16-year-old boy who fled Monday after allegedly shooting his 19-year-old half-brother turned himself in to law authorities on Tuesday.

The teen turned himself into the Hennepin County Juvenile Detention Center and was then transferred to Anoka County, where he remains in custody, according to Sheriff officials.

The mother of the wounded teen called police about 3:30 p.m. Monday from her home in the 1700 block of 37th Avenue NE. and reported the shooting, according to the Anoka County Sheriff's Office.

The wounded teen was identified as Deondre J. Sanstad, who "underwent two surgeries at HCMC [Hennepin County Medical Center ] yesterday and is doing well, considering his injury," Sheriff's Cmdr. Paul Sommer said Tuesday.

The younger brother, who has a different mother and whose identity has not been released, lives elsewhere. Initial word from witnesses was that the 16-year-old was playing with the gun and pointing it at his brother when it went off, authorities said.

However, Sommer said Tuesday afternoon, "It is too early to say the incident was an accidental discharge for sure. It won't be a case where a curious child finds a gun and 'plays' with it."

Sommer said investigators believe the gun belonged to the 16-year-old "and how he came to possess it is most likely criminal in nature."

Paul Walsh • 612-673-4482