Police are investigating a fatal crash that occurred Saturday afternoon at Brighton Avenue and Riverside Street in Portland. Credit: CBS 13

A 22-year-old Portland man died Saturday afternoon after a three-car crash on Riverside Street near Brighton Avenue.

Portland police Lt. Robert Martin said Patrick Lobor’s death is not presently being classified as a traffic fatality.

Lobor was the sole occupant of his car when the crash happened at 1:38 p.m., Martin said. He said two passengers in a second vehicle were taken to a local hospital with minor injuries and released shortly thereafter. The lone driver of the third vehicle required no medical treatment.

Martin would not comment about a tweet by a WGME reporter saying a witness told her “a man got out of one of the cars with a knife in his chest and fell to the ground.”

He also would not comment about whether the incident might have been caused by road rage, and declined to characterize the type of investigation police are conducting.

He said the Maine medical examiner’s office would conduct an autopsy to determine the cause and manner of Lobor’s death.

He said he expected the autopsy to be conducted around 9 a.m. Sunday, and information about the death to be released sometime after 11 a.m.

Martin said a couple people did stop to help, but did not stay at the scene, and he suspects others witnessed the crash.

Police are asking anyone who witnessed the crash to contact them at 874-8575.

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