A 4-year-old child is dead after being struck by a car while riding a scooter with his father, according to the NYPD.

Police also said a Queens man is dead, and a Brooklyn woman is fighting for her life, after they were struck by vehicles in separate incidents.

DEADLY SCOOTER CRASH IN THE BRONX

In the Bronx, the 4-year-old child, identified by police as Mario Rosario Jr., was riding on a stolen scooter operated by his father, Mario Rosario Sr., when it struck a white Toyota sedan traveling southbound, the NYPD said.

The incident occurred around 9:30 p.m. Sunday near West 193rd St and Bailey Ave, according to authorities.

The child was thrown from the scooter, police said. He suffered head injuries and was taken to St. Barnabas Hospital, where he was pronounced dead, according to authorities.

Authorities said both the 24-year-old father and the 51-year-old man driving the sedan remained on the scene after the incident.

Rosario Sr. has been charged with endangering the welfare of a child and criminal possession of stolen property, according to police. It remains unclear when exactly the scooter was stolen.

Authorities said William Zaev, the driver of the white sedan, was charged for not having a license, though police do not believe he was at fault for the crash.

MAN DIES AFTER BEING STRUCK BY SEDAN IN QUEENS

In Queens, approximately two hours earlier, at the intersection of Myrtle and Seneca Avenue in Ridgewood, police said a 74-year-old man was hit by a black sedan while crossing the street.

The victim, later identified by police as 74-year-old Be Tran, was pronounced dead at the scene, according to police.

The driver of the vehicle did not remain on the scene and no arrests have been made yet, according to authorities. The NYPD Highway Collision Investigation Squad is still investigating.

WOMAN CRITICALLY INJURED IN BROOKLYN

In Brooklyn, police are still looking for the hit-and-run driver who critically injured a 36-year-old woman in Bedford-Stuyvesant Sunday afternoon.

The incident took place just before 3 p.m. near the intersection of Pacific Street and Buffalo Ave, police said.

A preliminary investigation revealed a 2008 Mercury Mountaineer was traveling in reverse eastbound on Pacific Street when the driver struck a 36-year-old female who was crossing Pacific Street, according to authorities.

The woman was transported to NYC Health and Hospitals/Kings County and remains in critical condition. 

The investigation is ongoing by the NYPD Highway Collision Investigation Squad.

In July, the NYPD released new data on hit-and-runs involving critical injury. It revealed the number of incidents more than doubled - an increase of 129% - in the second quarter of 2022 compared to the same period in 2019, with just one case solved.

In a statement, Executive Director of Transportation Alternative Danny Harris decried the incidents, and called upon Mayor Eric Adams and elected officials to take action immediately.

“All New Yorkers deserve streets safe from the threat of traffic violence. We’re heartbroken and angry by the overnight crash that killed a 4-year-old boy in the Bronx and the hit-and-runs that killed a 74-year-old man in Queens and left a Brooklyn woman fighting for her life,” Harrisv said. “We urge Mayor Adams and DOT Commissioner Rodriguez to take immediate action to fast-track life-saving street redesigns. We send our deepest condolences to the family and loved ones of the two people killed and wish a full and speedy recovery to the person injured by traffic violence overnight.”

The deadly end to the weekend came on the heels of Gov. Kathy Hochul’s announcement of a statewide effort to reduce speeding and other traffic safety violations. 

The campaign to crack down on speeding began Sunday and runs until Aug. 21, Gov. Kathy Hochul's office said.