PROSPECT, Maine — A 7-year-old boy from Bucksport was taken by LifeFlight to Eastern Maine Medical Center on Tuesday afternoon after he fell approximately 15 feet at Fort Knox while on a school field trip, police said.

While the first-grader was conscious after the fall, he suffered fractures in both arms and a laceration to his head, said Lt. Jason Trundy of the Waldo County Sheriff’s Department. The lieutenant also said the child lost some teeth.

“He was talking,” Bucksport School Department Superintendent James Boothby said. “He actually walked back to his teacher after he fell.”

The boy was on a field trip to Fort Knox with his first-grade class and two other classes from G.H. Jewett School, the superintendent said.

Deputy Darrin Moody of the Waldo County Sheriff’s Department went to Fort Knox just before 3 p.m., Trundy said. According to Moody’s report, the child was rolling down an unspecified hill and went over an embankment, where he then fell approximately 15 feet.

“Exactly where the chaperones were when the child rolled down the hill, I don’t know,” Trundy said.

Superintendent Boothby said “three teachers, a number of ed techs and some chaperones” attended the field trip and he had no indication of where they were when the child rolled down the hill.