FRANKLIN -- The Milwaukee County Sheriff's Office is investigating a hit-and-run crash that happened Monday, August 22nd on an off-ramp from I-94 to Ryan Road.
It happened around 11:15 a.m.
Officials say a car hit the back of a semi on the off-ramp, and the people inside took off running.
The person who is believed to have been the driver is in custody.
Hit-and-run crash on off-ramp from I-94 to Ryan Road in Franklin