MILFORD, N.H. (CBS) – Students and faculty at a New Hampshire high school were evacuated on Friday morning due to roof concerns.

Firefighters were called to Milford High School for structural concerns after a teacher noticed a leaking skylight just after 7:30 a.m.

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The ceiling in the area was sagging several inches, and as a precaution staff members and students were evacuated to the nearby middle school’s gymnasium and dismissed from there.

Buses came to the middle school to bring students home.

Snow drifts on the roof of Milford High School. (WBZ-TV)

Snow drifts on the roof of Milford High School. (WBZ-TV)

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School officials told WBZ-TV there was no roof collapse, and the evacuation was due to a “minor structural issue” that took place near the back of the building.

“The assessment of the situation is ongoing,” said Superintendent of Schools Robert Suprenant.

The Milford Fire Department said it is unknown if the area is in danger of collapsing.

Much of the roof is clear of snow, firefighters said, adding that the issue may have been caused by a snow drift that was several feet high.

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Milford schools are out of session next week for February vacation. The roofs were previously scheduled to be cleared during the break.