(KUTV) -- A rear-end crash caused the death of a 3-year-old child and required medical air lift of an 8-month-old infant in critical condition to Primary Children's Hospital.
Provo City Police Officer Nick Dupaix told 2News that the accident happened just before 5 p.m. at University Avenue and 3700 North in Provo.
Dupaix said a vehicle traveling at approximately 45 miles-per-hour rear-ended a three-car chain facing southbound in the left turn lane, heading eastbound on 3700 North.
The impact created a domino effect affecting all four cars. The first vehicle rear-ended was carrying the toddler and infant.
"When you have something going 45 (MPH), colliding with something at a dead stop, it can cause severe and even deadly damage. It doesn’t seem that fast but ... momentum and inertia from that can cause death," Dupaix told 2News.
Dupaix added that there isn't any indication that the driver at fault was impaired. An active investigation is being conducted.
Preliminary reports of the crash are that seven victims total were injured in the crash.
This is a developing story. Check back for updates.