Police in Georgia have arrested one suspect and have reportedly shot and killed another man in connection with the fatal shooting of 30-year-old officer Antwan Toney of the Gwinnett County Police Department on Saturday.

Toney and another officer had been investigating reports of a suspicious vehicle. As the officers approached the vehicle at least one person inside began shooting. Officer Toney was struck as he and the other officer returned fire. The vehicle crashed a short distance away and its four occupants fled on foot.

Police believe that 18-year-old Tafahree Maynard—who was reportedly fatally shot early on Monday—fired the shots that killed Officer Toney. A second suspect—19-year-old Isaiah Pretlow—was charged with aggravated assault related to a separate incident following Toney's fatal shooting, according to WBNS-TV.

Officer Toney was transported to a nearby hospital where he succumbed to his wounds.

Toney had been with the department since October 2015.