Suspect arrested after Livonia hit-and-run kills child, critically injures mother and daughter

Grandparents of 3-year-old killed in hit-and-run that injured mom, sister,, share their grief

On Monday the 47-year-old suspect was arrested in Mid-Michigan while the family of the victims is trying to cope with the tragedy.

LIVONIA, Mich. (FOX 2) - A hit-and-run in Livonia late Sunday night left one 3-year-old dead while his sister and mother were in critical condition.

Livonia police took a woman into custody Monday, announcing the arrest in the early afternoon.

What we know:

Just before 11 p.m. Sunday night, Livonia police were called to a hit-and-run crash at the intersection of Merriman Road and Lyndon Street.

A 28-year-old mother from Detroit was walking with her twin 3-year-olds children when, while crossing Merriman, a vehicle struck the victims. 

According to a preliminary investigation by Livonia police, the driver fled the scene.

Witnesses at the scene helped move the injured children from the roadway as police responded. Emergency crews transported the kids to a nearby hospital while the Livonia Fire Department took the mother.

The 3-year-old boy succumbed to his injuries at the hospital while the 3-year-old girl and her mother are in critical condition.

Dig deeper:

The hit-and-run happened late at night when the Merriman-Lyndon traffic signals adjusted. 

The lights blink red for drivers on Lyndon and yellow for those on Merriman. The victims were at Lyndon, crossing Merriman at the time, a press release from Livonia police found.

Eyewitness reports helped lead the Livonia police investigation to a vehicle from Mount Morris, which was allegedly driven by a 47-year-old woman. She has since been taken into custody.

Street signs where a fatal hit-and-run happened in Livonia Sunday night. 

What we don't know:

The driver did not stop following the crash, according to police. 

The identity of the 47-year-old has not been revealed.

A previous version of this story misstated the traffic lights flashing at the Lyndon-Merriman intersection. The story has been updated to reflect this change.