BALTIMORE — An investigation is underway in Southwest Baltimore following an overnight fire.

Authorities say around 2:10 a.m., Baltimore Police and firefighters responded to homes, possibly vacant, in the 1900 block of Wilhelm Street for reports of a fire.

Officers arrived on the scene and found that firefighters were working to extinguish the flames.

After firefighters put out the fire, a K-9 unit searched the homes and found one unidentified victim dead.

Police say Arson and homicide detectives are investigating the incident.

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