CAMBRIDGE (CBS) — One construction worker has died and two others were injured after scaffolding fell from a building and landed on them on the campus of MIT.

The incident happened around 3:00 p.m. Thursday at a construction site on Vassar Street.

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The workers were on the ground level when construction material fell on top of them from the third floor. The three workers were taken to area hospitals. One of the workers, 41-year-old Anthony Costa Jr. from Taunton, later died. The other two workers sustained non life-threatening injuries.

MIT construction site where three workers were injured by debris. (WBZ-TV)

“It was just the wrong time to be in that location,” said Cambridge Fire Assistant Chief Paul Sheehan.

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The construction project is being run by Walsh Brothers. The project will be a new dorm building for MIT.

“We are deeply saddened by the loss of our valued employee and we will do all that we can to support his family at this time,” Walsh Brothers said in a statement.

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Cambridge Police, MIT Police and OSHA are investigating. It is still unclear what caused the materials to fall down.

Mike LaCrosse