CHICAGO (CBS) — Two men were killed and at least 20 other people, including an off-duty Cook County sheriff’s courts deputy, have been wounded in shootings across the city since Friday afternoon, according to Chicago Police.

About 1:40 a.m. Saturday, Kentrell Thompson, 25, was sitting in a vehicle at a gas station in the 1200 block of North Halsted in the Goose Island neighborhood on the Near West Side when someone fired several shots at the vehicle, according to police and the Cook County medical examiner’s office. Thompson suffered a gunshot wound to the head and was pronounced dead at the scene at 2:29 a.m. He lived in the Humboldt Park neighborhood on the West Side.

The other killing happened about 7:45 p.m. Friday in the West Pullman neighborhood on the Far South Side, where officers responding to a call of shots fired in the 400 block of West 129th Place found a 34-year-old man with gunshot wounds to the head and thigh, authorities said. He was taken to Christ Medical Center in Oak Lawn, where he died at 8:27 p.m. His name has not been released.

The sheriff’s deputy was among three people wounded when gunfire erupted outside a Gold Coast bar where he was working security while off-duty about 3:30 a.m. Saturday near State and Division, authorities said. Detectives were questioning a person of interest in the attack, which a police source said stemmed from a dispute over payment.

A 39-year-old man grazed in the head was taken to Northwestern Memorial Hospital along with a 33-year-old man shot in the leg, and a 30-year-old man shot in the back was taken to Illinois Masonic Medical Center. Fire officials said they all were in serious condition, but police said they had stabilized by mid-morning.

The weekend’s latest nonfatal shooting happened about 1:45 a.m. Sunday in the Park Manor neighborhood on the South Side. A 16-year-old boy was on the sidewalk in the 6300 block of South Prairie when someone in a dark-colored vehicle opened fire, police said. The boy was shot in the left thigh and later showed up at Mercy Hospital, where his condition was stabilized.

At least 16 more people were wounded in other Chicago shootings between 3 p.m. Friday and 10 p.m. Saturday.

Last weekend, 53 people were shot in Chicago, six of them fatally. More than 285 people have been shot in the city during the first month of the year.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2016. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)