Mother, 3-year-old girl killed in crash on I-75, police say

Police say a 3-year-old girl and her mother were both killed in a crash on Interstate 75 Wednesday afternoon in Clayton County.
Police said the crash happened on I-75 northbound at Forest Parkway around noon.
All lanes were shut down for hours as investigators worked to determine the cause of the crash. They reopened around 4 p.m.