OXFORD (CBS) – One person was killed and five were hurt when a cement truck and a car crashed head-on on Route 20 in Oxford Monday.

State Police say a 31-year-old Sturbridge woman was driving east in a 1999 Chevrolet Cavalier when her car crossed the centerline and struck the truck in the westbound lane. The impact from the collision pushed the car back into the eastbound lane where it was hit by a 2000 Mercedes ML320.

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The woman was pronounced dead at the scene, and an 8-month-old boy in her car was rushed to the hospital with life-threatening injuries. He is currently on life support at UMass Medical Center in Worcester, police say.

Another passenger in the woman’s car, a 2-year-old boy, suffered serious injuries and was also taken to UMass Medical Center.

The truck, which is owned by Sterling Concrete Corporation, rolled onto its side and the 34-year-old Oxford man was taken to the St. Vincent’s Hospital in Worcester with “non-incapacitating injuries,” police say.

Police said two Southbridge residents, a 55-year-old man and a 26-year-old person, were in the Mercedes suffered “non-incapacitating injuries” and were taken to UMass Medical Center.

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Two people in the wrecked car were killed. (WBZ-TV)

One person in the wrecked car was killed. (WBZ-TV)

An initial report from police said two people in the car were killed, but officials later said that was incorrect.

The cement truck driver and two people in the third car were hurt and were also taken to the hospital.

This section of Route 20 in Oxford was closed for several hours after the crash. (WBZ-TV)

This section of Route 20 in Oxford was closed for several hours after the crash. (WBZ-TV)

A section of Route 20 remained closed at 4:30 p.m. Traffic in the area is being diverted through Oxbow Road and Richardson Corner.

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Police say the victims won’t be identified on Monday.