TUCSON, Ariz. — The Latest on the fatal shooting of a 15-year-old boy during what police said was an attempted robbery (all times local):

2:05 p.m.

Tucson police say a 15-year-old boy fatally shot while participating in a robbery attempt was related to two of three young men arrested in the case, including the man who allegedly shot the teen while firing at four intended victims.

Detective Kristopher Goins says 15-year-old Johnathon Schmedding was a brother of 19-year-old Julian Schmedding and a half-brother of the alleged shooter in Sunday’s incident, 25-year-old Roy Lee Brown.

Brown, Julian Schmedding and 21-year-old Jesse King remained jailed Monday in lieu of $1 million after appearing in court late Sunday.

They were arrested on suspicion of first-degree murder, attempted armed robbery and other crimes, and it could not be immediately determined whether they have attorneys who could comment on the allegations.

According to police, Johnathon Schmedding was struck by one of several rounds allegedly fired by Brown toward four people whom Brown and his companions allegedly were trying to rob on a street.

11:20 a.m.

Tucson police have arrested three young men in a robbery attempt and the fatal shooting of a teenager who police said was a participant and who reportedly was a brother of one of the three.

Police arrested 25-year-old Roy Lee Brown, 19-year-old Julian Schmedding and 21-year-old Jesse King following the shooting of 15-year-old Johnathon Schmedding.

The three arrested men remained jailed Monday in lieu of $1 million after appearing in court late Sunday.

They were arrested on suspicion of first-degree murder, attempted armed robbery and other crimes, and it could not be immediately determined whether they have attorneys who could comment on the allegations.

According to police, Johnathon Schmedding was struck by one of several rounds allegedly fired by Brown toward four other people whom Brown and his companions allegedly were trying to rob on a street early Sunday morning.

Media outlets reported that Johnathon Schmedding and Julian Schmedding were brothers. Police did not immediately respond to a request for comment.

7:05 a.m.

Tucson police say a teenage boy fatally shot on a street was among four people trying to rob four other people during an early morning encounter.

Police identify the teen killed Sunday as 15-year-old Johnathon Schmedding and say he was struck by one of several rounds allegedly fired by another member of the group as they ran toward the four other people to rob them.

Police officers who heard gunfire at 2 a.m. in the area of East 28th Street and South Van Buren Avenue found the fatally wounded boy’s body on the roadway.

According to police, the three young adults who were with the teen have been arrested on suspicion of first-degree murder, attempted armed robbery and other crimes.

None of the people in the other group were injured.