Part of Route 3 was shut down in Tyngsborough temporarily Friday afternoon as police investigated a fatal crash on the highway.
According to Massachusetts State Police, the crash occurred shortly after 2:30 p.m. at mile marker 89.
One person was killed in the crash, according to MSP, and three others received serious injuries.
Tyngsborough Police Department said in a statement shortly after 3 p.m. that they were “actively responding to and investigating a crash on Route 3” alongside Massachusetts State Police and the entire area was shut down.
The department said in a second statement just after 3:30 p.m. that the road had reopened, but the northbound lanes just prior to exit 88 remained closed.
Drivers were asked to avoid Route 3 as the investigation continues.
No other information