Howard Yuwen told WBZ-TV that his son, Calvin, and his daughter, Julia, were playing in the wagon when it rolled away. Their mother and older brother, also named Howard, were just feet away and began chasing after the wagon to no avail.

One Lexington child was still in the hospital in serious condition Wednesday after he, his brother and sister crashed their toy wagon into a car Monday evening.


At 5:25 p.m. Monday, the 3-year-old boy was riding in a plastic wagon on Winter Street with his older brother, 6, and his younger sister, 14 months, according to police.


“It appears the children were riding in a wagon that rolled down a hill and into traffic on Bedford Street,” said Lt. Joseph O’Leary.


The children’s father, Howard Yuwen, told WBZ-TV that his son, Calvin, and his daughter, Julia, were playing in the wagon when it rolled away. Their mother and older brother, also named Howard, were just feet away and began chasing after the wagon to no avail.


Julia was strapped in with a seatbelt, but Calvin was thrown into oncoming traffic when the wagon hit a minivan on Bedford Street.


Calvin was transported to Hanscom by ambulance and then was flown to Boston Medical Center. Julia was transported to Boston Medical Center in an ambulance and was released Monday night.


The boy is expected to recover.


“The initial scan seems to indicate that he’s OK. There is not major structural damage,” Yuwen told WBZ.


Police are still investigating the cause of the crash and if the children were being supervised by any adults, said Lt. Manuel Ferro. As of now, police say they are unlikely to file any charges against the driver or anyone else involved.


Reporter Meghan B. Kelly can be reached at mkelly@cnc.com.


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