One person was seriously injured Monday afternoon in a multi-vehicle crash on Interstate 495 in Andover, Massachusetts, according to state police.
The crash happened on the northbound side of the highway just before 2 p.m. south of the ramp to Route 28.
Authorities said a male driver had gone off the roadway and crashed into a tree in the median.
When first responders arrived, the man was trapped in his SUV and needed to be extricated.
Authorities said the victim, who has not been identified, was conscious when he was taken by medical helicopter to an area hospital for treatment of serious injuries.
The exact cause of the crash, which authorities previously said involved multi-vehicles, is under investigation.