NEW BERLIN, WI (WTAQ) - Investigators now say that two vehicles struck and killed a pedestrian on a suburban Milwaukee freeway nine days ago.

Waukesha County sheriff’s deputies are asking people to tell what they know about the second vehicle.

54-year-old Denise Merkel of Sussex had her car break down on Interstate 43 in New Berlin – and she was struck and killed while crossing the traffic lanes.

It happened around 5:30 a.m. on March 2nd.

Investigators say they just learned that a second vehicle ran over Merkel as her body was lying on the freeway.