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Four people were shot, one fatally, on the South and West Sides on Monday.

A 29-year-old man died after suffering a gunshot wound to the face in the 1100 block of East 73rd Street in the city’s Grand Crossing neighborhood at about 9 a.m., according to Chicago police.

The victim was arguing with the assailant, who he knew, when the assailant pulled a gun and shot him in the face, police said.

Later at about 1 p.m., an 18-year-old man was shot in the right foot in the first block of North Lotus Avenue in the Austin neighborhood on the West Side. Police said the assailant fired multiple rounds at the victim, who was taken to Mount Sinai Hospital in good condition.

Also in the Austin neighborhood, someone shot a 22-year-old man as he was walking in the 300 block of North Central Avenue just before 9:30 a.m. The man was taken to an area hospital where his condition had stabilized, police said.

At 11:40 a.m., a 16-year-old boy was shot in the back in the 1600 block of South Drake Avenue in the Lawndale neighborhood. He was taken to Stroger Hospital in serious condition.

Police reported no arrests but detectives are investigating.