CHICAGO, IL - JUNE 30:  Police investigate the murder of a young man found shot to death in the back seat of a bullet-riddled car on June 30, 2017 in Chicago, Illinois. More than 300 people have been killed and more than 1700 wounded by gunfire in Chicago this year. On June 1, a task force was formed by the Chicago police, Illinois state police and the ATF to combat the gun violence in the city. ATF has formed similar task forces on a temporary basis to fight regional spikes in gun violence. Chicago
PHOTO: Scott Olson/Getty Images North America
CHICAGO, IL - JUNE 30: Police investigate the murder of a young man found shot to death in the back seat of a bullet-riddled car on June 30, 2017 in Chicago, Illinois. More than 300 people have been killed and more than 1700 wounded by gunfire in Chicago this year. On June 1, a task force was formed by the Chicago police, Illinois state police and the ATF to combat the gun violence in the city. ATF has formed similar task forces on a temporary basis to fight regional spikes in gun violence. Chicago's task force is the only one in the nation formed with the idea to be permanent. (Photo by Scott Olson/Getty Images)
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(CNN) —  

It was the first warm weekend in Chicago, and just as feared, violence spiked, with 24 shootings across the city and five murders, police said.

The count began Friday at 6 p.m. and ran though Sunday.

In one incident, two children were among several people injured at a baby shower, Chicago Police Department spokesman Anthony Guglielmi said. The children were in stable condition midday Monday.

“We know that two men in dark clothing approached the family gathering which we believe was a baby shower and opened fire,” Guglielmi said.

“The shooters fled the area on foot,” he added. “Cooperation has been very limited with detectives, and based on victim profiles we suspect this could have been a possible retaliatory shooting from an earlier incident that stemmed from an ongoing gang conflict in that neighborhood.”

Mayor-elect warns of ‘summer violence season’

In the same time frame last year, there were 18 shootings and four murders, police spokesman Michael Carroll said.

While many candidates in Chicago’s mayoral election have called for Police Superintendent Eddie Johnson’s badge, Mayor-elect Lori Lightfoot promised a more patient approach, predicting warmer weather would again usher more violence into the city.

“We’re going to be heading soon into the summer violence season,” she told CNN. “After that’s over, we’ll evaluate at that point, but I’m going to be working closely with the superintendent and with his executive team to make sure that we keep our neighborhoods safe.”

CNN’s Eliott C. McLaughlin contributed to this report.