A surviving victim of a deadly school shooting in La Loche, Sask., nearly three weeks ago has been released from a Saskatoon hospital, CBC News has learned. 

Three other victims remain at Royal University Hospital.

The Saskatchewan Premier's Office confirmed the release Thursday morning.

In all, four people were killed and seven others wounded when a male opened fire Jan. 22 at a home in the community and later at the La Loche Community School.

A 17-year-old has been charged with four counts of first-degree murder and seven counts of attempted murder, related to the shooting. He cannot be named under the Youth Criminal Justice Act.