An 18-year-old was among three men who were fatally shot in a 24-hour span in Prince George’s County.

Police identified Demarco Robinson, 33, of Lanham as a victim who was shot inside a car and driven to a hospital.

Robinson was near a store in the 7300 block of Landover Road when he was shot at about 3:40 p.m. on Tuesday, according to Prince George’s police. Another person was shot but did not appear to have life-threatening wounds, police said.

In a separate case, Tyrek Walker, 18, was found with a gunshot wound after a reported shooting about 1:25 a.m. on Wednesday in the 2500 block of Darel Drive, police said. He was pronounced dead at the scene.

Authorities are working to arrest a suspect in Walker’s killing and have strong leads in Robinson’s case, police said.

Police have not identified the person killed in a fatal shooting Tuesday at about 6:50 a.m. in the 800 block of Kayak Avenue.

Police are asking anyone with information about these cases to call 301-772-4925 or 1-866-411-TIPS (8477).