SAGINAW, MI — Shortly before noon today, school officials were "still counting windows" that were broken at Bridgeport High School, several hours after arriving to discover the damage caused by vandals overnight.

The damage includes at least 15 broken windows. Classes will be in session Thursday, Oct. 17,

Bridgeport-Spaulding School District Superintendent Gloria Rubis said.

The high school was the only building in the district to close Wednesday, Oct. 16,

she said.

"

We are going to have school tomorrow," Rubis said about 11 a.m. Wednesday, Oct. 16. "There is no reason why it wouldn't be cleaned up."

Damaged during the vandalism overnight were five or six windows in the main office, four floor-to-ceiling glass panes and an estimated "half-dozen" windows on raised parts of the roof above the cafeteria and some classrooms, she said.

Because of the location of the roof windows, Rubis said she believes someone was on the roof of the school.

She said she could not provide a damage estimate but that the district is speaking with insurance representatives to assess the vandalism. The school will be repaired, likely with a combination of temporary boards to cover some broken windows and new windows in other locations, Rubis said, noting that some of the windows may have to be custom ordered.

Many of the windows are original and were installed during the school's construction more than 50 years ago.

An American flag is visible through a broken window at Bridgeport High School, 4691 Bearcat in Bridgeport Township, Wednesday morning, Oct. 16, 2013. Vandals smashed windows in several parts of the school sometime overnight causing heavy damage and the cancellation of classes for the day.

A glass company was called to the school to begin the repairs, and a restoration company was called in to help with the clean-up of broken glass from inside the school.

"We've got shards of glass in the carpeting and all over," Rubis said.

The Michigan State Police crime lab was at the school Thursday and investigators were on the roof, Rubis said, adding that she believed they were looking for footprints and other evidence. Bridgeport Township police officers were investigating at the school.

Police were not immediately available to provide additional information.

Rubis said the school has security cameras, and investigators are reviewing the footage.

She asks anyone with information about the incident to call the Bridgeport High School Administration Office at 989-777-3100 or the Bridgeport Township Police Department at 989-777-2800.

"I know people will be talking and social media will be

buzzing

" Rubis said. "If anybody has any information whatsoever, please call."