London police are investigating an early morning homicide.

Around 5:20 a.m. Sunday, police were responding to a to a disturbance in the parking lot of 1181 Highbury Avenue North when they were alerted by a citizen of gunfire in the area.

Officers found an 18-year-old man with gunshot wounds in the parking lot of 1365 Huron Street. All life-saving efforts by EMS were unsuccessful.

Police have identified the deceased as Jeremy Ryan Cook, 18, originally of Brampton.

An autopsy is underway at London Health Sciences Centre and investigators remain at the scene.

The three individuals who were arrested shortly after the incident remain in custody, however charges have not yet been laid.

Police say they are not currently searching for any other suspects.

Police remain at the scene, searching for evidence and canvassing for witnesses.

Anyone with information, including anyone who may have heard or seen suspicious activity in the area around the time of the incident is asked to contact the London Police Service at 519-661-5670 or CrimeStoppers at 1-888-222-TIPS (8477).

This is the city's fourth homicide of 2015.