Tony Award-winning actress Ruthie Ann Miles’s 4-year-old daughter was killed in an accident Monday that also killed a 1-year-old boy.

Miles and her friend, Lauren Lew, were crossing a Brooklyn street with their children when a driver appeared to lose control of her vehicle and slammed into them. Miles, who is pregnant, was injured and lost her daughter, Abigail Blumenstein. Lew, who was also injured, had been pushing her 1-year-old son Joshua in a stroller. He died, according to the Associated Press.

The two women were hospitalized, along with a 46-year-old man who was also struck and is expected to survive. Lew’s father, William Durston, told the New York Daily News that he was concerned about his daughter’s “health and her mental well-being.” He caught a flight to New York from Hawaii, where he lives, to go see Lew and her six-month-old son, Samuel.

According to a GoFundMe page raising money for Miles’s family, the actress is recovering, and her unborn baby was unharmed.

The driver, a 44-year-old woman from Staten Island, was stopped in her white Volvo at the busy intersection on Ninth Street and Fifth Avenue in the Park Slope neighborhood, according to the Associated Press. But the car began to move, slowly at first, until it sped up and struck the pedestrians. Both the car and Joshua’s stroller were wrecked, according to video footage.

Witnesses shared grim details of the accident with the Daily News. One said the car dragged Joshua’s stroller almost an entire block before it came to a stop.

“It was horrible to watch,” Debbie LaSalle, a 44-year-old Park Slope resident, told the Daily News. “I’m still in shock. The white car was going really fast. The pregnant mother was face down and the baby flew into the street.”

The driver has not been charged, and a law enforcement official told the AP on the condition of anonymity that the driver was not drunk at the time.

Miles, 34, made her Broadway debut in the musical “The King and I,” which won her a Tony award in 2015 for best performance by an actress in a featured role. She also starred in “Sunday in the Park with George” alongside Jake Gyllenhaal and had a recurring role on the FX series “The Americans.”

Many Broadway stars posted their condolences on social media and linked to the GoFundMe page for Miles’s family. There is also a GoFundMe page raising money for Lew’ s family.

“Heartsick for Ruthie and her family,” wrote “Hamilton” creator and star Lin-Manuel Miranda.

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