Three separate collisions involving a total of 10 vehicles occurred during a 30-minute period on Interstate 89 north on Tuesday evening.

All three accidents happened between 5 and 5:30 p.m., and reports filed by responding state troopers indicate traffic volumes were heavy during that time on the northbound interstate.

Vermont State Police from the Williston barracks responded to the first crash in South Burlington near Exit 14 at mile marker 89, which involved two vehicles, just minutes after 5 p.m.

Upon investigation, police concluded one of the vehicles, a 2016 Toyota Rav-4 driven by Carolyn Fundis, 52, of Milton, had slowed down due to congested traffic near the exit.

The second vehicle, a 2007 Chevrolet Impala driven by Natalie Gagnon, 17, of Shelburne was traveling behind the Rav-4 and collided with the back end of Fundis’ SUV.

Both drivers were wearing seatbelts and neither was injured; however, both vehicles sustained bumper damage. The cause of the accident is still being investigated, troopers said.

At 5:09 p.m., state police and South Burlington Fire and EMS responded to a second collision involving two vehicles at mile marker 88.8, also within close proximity to Exit 14 on I-89N.

Law enforcement officials determined one of the vehicles, a 2016 Toyota Corolla driven by Wayne Billado, 20, of Milton was unable to avoid rear-ending the second vehicle involved, a 1999 Ford Explorer driven by Tenesha Cusson-Ducharme, 33, of Winooski, police said.

Billado’s vehicle sustained considerable front-end damage and was declared totaled. The back end of Cusson-Ducharme’s SUV was damaged but not totaled. The occupants in both vehicles were wearing seatbelts, and no injuries were reported.

State police and South Burlington crews responded to the third collision involving six vehicles, which occurred near the I-89 northbound ramp on 189E, at approximately 5:24 p.m.

Police reports indicate this collision resulted from heavy traffic congestion caused by the accident that occurred minutes beforehand at mile marker 88.8, a press release said.

The pile-up began when a 2016 Honda Odyssey driven by Brian Singh, 32, of Milton couldn’t stop and crashed into the back of a 2012 GMC Sierra driven by Harold Tricou, 50, of New Haven.

The impact then pushed Tricou’s SUV forward into a 2010 Chrysler Town & Country driven by Theresa Hanson, 36, of Highgate. As a result, Hanson’s minivan was then forced into the back end of 2012 Toyota Camry driven by Meghan Lout, 37, of Colchester.

Simultaneously, Jared Poland, 21, of Milton, who was driving a 2013 Ford F-150 slammed into the rear of Singh’s GMC Sierra. A driver, Sandra Brisson, 62, of North Ferrisburgh, who was operating a 2013 CRV, then hit the back of Poland’s pick-up truck.

All the vehicles involved sustained damage, but none were totaled. All the occupants we were seatbelts, and no one was hurt, police said.