CHICAGO — Mayor Rahm Emanuel will return to Chicago from Cuba on Tuesday afternoon to work on Chicago Police Department reforms in the wake of the weekend’s fatal police shooting of two people, one by accident.

The mayor’s office billed the homecoming as Emanuel “cutting his family trip short,” but did not immediately respond to questions on how long Emanuel was scheduled to be in Cuba, when he left and when he originally was slated to return.

“While Mayor Emanuel has been in constant contact with his staff and Interim Superintendent (John) Escalante, he is cutting his family trip short so that he can continue the ongoing work of restoring accountability and trust in the Chicago Police Department. He will arrive back in Chicago on Tuesday afternoon,” Emanuel spokeswoman Kelley Quinn said in a statement.

The latest controversial shooting occurred early Saturday morning as officers responded to a domestic violence call of a man wielding a bat.

Police shot and killed Quintonio LeGrier, a 19-year-old engineering student, after he became combative with them, a Chicago police statement said. During the altercation, Bettie Jones, 55, a mother of five who lived downstairs from LeGrier’s father, was shot and killed by accident.

Hours after the West Side incident, Chicago police were involved in yet another shooting, though this one nonfatal. At 1:30 p.m. Saturday, officers confronted a man with a gun, leading one officer to open fire, wounding the man.

The shootings were the department’s first lethal use of force since the release of the Laquan McDonald video in late November. The disturbing 2014 dash-cam video showed 17-year-old McDonald carrying a pocket knife and walking away from Officer Jason Van Dyke, who shot 16 rounds at the teen within seconds of arriving at the scene and now faces first-degree murder charges.

The video, which was released only after a judge’s order, has led to changes. The U.S. Justice Department has launched a civil rights investigation into excessive force. Police Superintendent Garry McCarthy was fired, and the head of the independent agency that investigates allegations of police misconduct was forced out. Emanuel publicly apologized.