WATERLOO, MD—Maryland State Police are investigating a fatal multi-vehicle crash that occurred early Tuesday morning on Interstate 95 in Howard County.

At just after 1:30 a.m., troopers responded to southbound I-95 north of Route 100 for a report of a multi-vehicle crash. According to a preliminary investigation, a 2016 Porsche Cayenne rear ended a 2008 Mazda CX-9, which caused both vehicles to lose control.

A passenger sitting in the rear of the Mazda, identified as Alcira Garcia De Dubon, 50, of Baltimore, was ejected from the vehicle. She was pronounced dead at the scene. The driver and three other passengers in the Mazda were not injured.

The driver of the Porsche, a 46-year-old Columbia man, exited his vehicle after the crash and was standing by the right shoulder guardrail. He then attempted to cross I-95 and walked directly into the path of a 2019 Honda Odyssey. He was taken by ambulance to the R. Adams Cowley Shock Trauma Center for treatment of his injuries.

Southbound I-95 was closed for approximately five hours following the crash. The Maryland Department of Transportation State Highway Administration assisted with the lane closures. The Maryland State Police Crash Team is investigating this incident.

The cause of the crash remains under investigation.