State Police responded to a multi-vehicle crash that resulted in three fatalities on Route 195 eastbound at about 8:12 a.m. on September 28.

According to police, a 2005 Dodge Caravan livery vehicle traveling westbound crossed the grass median between exits 10 and 11 in Westport and struck a 2007 BMW 328i that was traveling in the left lane on the eastbound side head-on.

Police said the operator of the Dodge Caravan livery van was identified as John Oliveria, 68, of Dartmouth. Oliveria was transported to Charlton Memorial Hospital in Fall River, where he was pronounced deceased.

Police are still investigating what caused Oliveria to lose control of the vehicle. Police said they are investigating the possibility of Oliveria suffering a medical incident just prior to the crash.

The livery was owned by Regal Transit of New Bedford.

The front-seat passenger of the livery was identified as Josephine Mazzocca, 55, of New Bedford. Mazzocca was determined to be deceased at the scene, said police. A 56-year-old New Bedford man was rescued from the Caravan’s rear passenger seat and was transported to Rhode Island Hospital in Providence.

Police said the front-seat passenger of the BMW 328i was identified as Karonlyne Camile Lima, 23, of New Bedford. Lima was transported to St. Luke’s Hospital in New Bedford, where she was pronounced deceased.

The 25-year-old Fall River man operating the BMW was also transported to Rhode Island Hospital. A three-year-old boy in the rear seat was transported to Hasbro Children’s Hospital in Providence, according to police.

Three other vehicles were involved in secondary crashes after the initial crash, said police. After the livery van careened off the BMW, it struck an Audi A4 that was traveling eastbound. The 34-year-old Fall River man operating the Audi was not injured.

The BMW was next struck by a Subaru Outback that was also traveling eastbound. That impact caused the Subaru to become fully engulfed in flames. The 27-year-old, male operator from Waterbury, Vermont, was transported to Rhode Island Hospital.

A fifth vehicle — a Chevrolet Suburban — was also traveling eastbound. The 73-year-old, male operator from Barrington, R.I. avoided colliding with the other vehicles, but struck a signpost on the grassy median. He was not injured, police said.

The ongoing investigation is being conducted by State Police from the Dartmouth Barracks and the State Police Detective Unit for Bristol County, with the assistance of the State Police Collision Analysis and Reconstruction Section and the State Police Crime Scene Services Section.

No further information is being released at this time.