(Deerfield, MA) A three-car accident on I-91 northbound in South Deerfield required ambulances from three different departments Sunday evening. According to the South Deerfield Fire Department, the accident occurred shortly before 7 p.m. Sunday, just beyond the north on-ramp to I-91 from Route 116. Ambulances from South County EMS, Northampton, and Hatfield all responded to the scene. The occupants of all three vehicles were reportedly alert with non-life threatening injuries. All three vehicles were towed from the scene.