ALTON, Ill. – An investigation is underway after a teenager was fatally shot Tuesday afternoon in Alton. One suspect is in custody.

The shooting happened around 12:50 p.m. in the 2600 block of Maxey Street. The victim was shot in the chest and later died from his injuries.

The Alton Police Department says this was “not a random act of violence,” and the suspect and victim were known to each other. Investigators have not disclosed any information on what might have led up to the shooting or a potential motive.

Police have not yet disclosed the ages or identities of the victim or suspect.

“It’s always devastating when a young life is taken. On behalf of the Alton Police Department, we offer our sincerest condolences to the family dealing with this tragic loss,” said the Alton Police Department in a statement to FOX 2.

The Madison County State’s Attorney’s Office is assisting the Alton Police Department with the investigation.