Two children were killed and two others critically injured when an allegedly intoxicated driver crashed into an Amish horse-drawn buggy in southern Michigan, police said.

The driver, who has not been publicly identified at this time, was driving a pickup truck when they rear-ended the buggy carrying two adults and five children on Friday. The incident occurred alongside a road in Algansee Township, the Michigan State Police Department said in a statement provided to Fox News.

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The impact threw all seven passengers from the carriage. Two of the five children — ages 2 and 6 — were killed. They were pronounced dead at the scene.

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Authorities said two other children, ages 3 and 4, were also hospitalized. The 3-year-old suffered major injuries, according to the statement, while the 4-year-old suffered life-threatening injuries. One of the adults on the buggy — a woman — was also seriously injured. The status of the fifth child and second adult is not currently clear.

Michigan State Police Sgt. Todd Price told ABC News that the pickup truck's driver was intoxicated at the time of the crash and is being held in Branch County Jail.

The Associated Press contributed to this report.