Two people are now in custody and police are still searching for a third following a fatal shooting in uptown Saint John.

A 20-year-old man appeared in court on Wednesday and was charged with first-degree murder. He was remanded into custody.

Police said a second suspect, a youth, has been arrested and will be appearing in Saint John Provincial Court to face charges.

Investigators said they have identified the third suspect in connection with the shooting but have not yet located them.

A call came in to police about shots fired in the area of Carmarthen Street and King Street East around 10:30 a.m. Tuesday.

Officers found the body of a 20-year-old man inside a vehicle. His name has not been released, but next of kin have been notified.

Three suspects were seen leaving the area on foot headed down Carmarthen Street toward Union Street, according to police.

Police posted a shelter-in-place advisory on social media around 20 minutes later and issued an emergency alert around 12:40 p.m. Tuesday. Several nearby schools were also placed on lockdown.

The alert was cancelled around 2:45 p.m. Tuesday after officers arrested one of the suspects and determined the shooting was an isolated incident.

Investigators are appealing for witnesses or anyone in the area who has video footage or surveillance of the incident. You can contact the Saint John Police Force at 506-648-3333 or Crime Stoppers at 1-800-222-8477.