GLEN BURNIE, Md. (WJZ) –An investigation is underway after a head-on crash in Anne Arundel County claims the lives of four people.

Mike Schuh has more on the fiery crash.

Police now say excessive speed by one of the vehicles involved in the crash is considered a major contributing factor, but there are still many questions left unanswered.

It happened Sunday around 1:30 p.m. on Marley Neck Boulevard in Glen Burnie where two passenger cars collided head-on.

There was a mangled mess of metal in the roads with pieces of the cars scattered about.

Police say the crash happened when one of the cars crossed over the double yellow line into oncoming traffic.

Officials report one of the cars overturned and caught fire.

“The collision resulted in four fatalities: three adults, one child. Our traffic safety unit is investigating,” said Lt. Francis Tewey, Anne Arundel County Police.

It happened along a remote, tree-lined stretch of Marley Neck Boulevard, not far from Freeman Shores Road.

The accident forced traffic to shut down in both directions for more than four hours.

Police have now released the names of the four people killed.

They are 30-year-old Joseph Oliver Jr. of Glen Burnie, 18-year-old Crystal Benton of Laurel, 21-year-old Brittney Ziegler of Pasadena and 3-year-old Lilly Gross of Glen Burnie.

There were two people in each vehicle involved in the crash.

Police say while they have determined speed to be a major factor in this crash, there’s no word yet if drugs of alcohol played a role.

All four of the people killed in the crash were pronounced dead at the scene.