There is a heavy police presence in a section of Tewksbury, Massachusetts, on Wednesday afternoon due to what authorities are describing only as an “ongoing incident.”

“There is currently a heavy police presence on Salem Road due to an ongoing incident,” Tewksbury police said in a social media post just before 1 p.m. “Motorists are advised to avoid the area and seek alternate routes if possible. Please allow emergency personnel the space they need to respond safely and efficiently”

No further details were released. Police said they will provide updates as more information becomes available.

CHELMSFORD, MASS. (WHDH) – A wrong-way driver crashed into another vehicle on I-495 in Chelmsford Tuesday night, shutting down the soundbound lanes in that area, according to Massachusetts State Police and The Massachusetts Department of Transportation (MassDOT).

State police said Troopers from the Concord Barracks responded to a two-car crash on I-495 at the Hunt Road overpass shortly before 10 p.m. They said preliminary information indicates the crash happened as a result of a wrong-way driver striking a vehicle traveling in the correct direction.

Chelmsford Fire and EMS responded to the scene, and the driver was taken to the hospital by MedFlight. State police said they suffered life-threatening injuries.

MassDOT said the highway southbound is currently closed at exit 88 due to the crash, and is expected to remain closed for several hours.

Drivers are asked to seek alternate routes at this time.

This is a developing news story; stay with 7NEWS on-air and online for the latest details.

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Two people were seriously injured in a stabbing at the Cedar’s Mediterranean Foods manufacturing facility in Haverhill, Massachusetts, on Tuesday morning.

Haverhill police said they responded to the Cedar’s plan on Foundation Avenue around 10:30 a.m. for a report of a disturbance involving a weapon. When they arrived, they found two people suffering from apparent stab wounds.

Both people were provided with medical assistance on scene and taken to area hospitals with what police described as serious injuries. Their names have not been released, and no update on their conditions was immediately available.

Preliminary investigation determined that the two people knew each other, and police said there is no ongoing threat to the public. They said their investigation into the incident remains active.