The incident happened around 4:15 p.m. Monday, Oct. 28, in Herkimer County in the village of Newport, located about 70 miles west of Sarasota Springs.
New York State Police say a preliminary investigation revealed that a 2017 Jeep Renegade operated by a 36-year-old Newport man was traveling east on Butler Road when it struck the rear portion of the Amish Buggy traveling in the same direction.
As a result of the collision, Rebecca Swartzentruber, age 31, from Newport, and 1-year-old Mattie Swartzentruber were ejected from the buggy.
Rebecca Swartzentruber was pronounced dead at the scene. Mattie Swartzentruber was transported to Wynn Hospital in Utica with non-life-threatening injuries.
The driver of the Jeep was not injured in the crash.
Click here to follow Daily Voice Syosset-Woodbury and receive free news updates.