One person is in custody after a man was shot early Wednesday in the Gresham neighborhood on the South Side.

A 19-year-old man was inside a home when someone he knew fired shots, striking him in the stomach at 1:03 a.m. in the 7700 block of South Hermitage, according to Chicago Police.

He was taken to Advocate Christ Medical Center where he was in serious condition, police said.

A person who was taken into custody after the shooting was released without being charged, police said.

Area South detectives were investigating.