BOSTON (WHDH) - An investigation is underway at a construction site outside of the TD Garden after a bundle of steel beams fell from a crane on Thursday afternoon.

The beams were hoisted about 40 feet in the air when they suddenly plummeted to the ground, sending workers scrambling to safety below, witnesses told 7’s Alex Diprato.

A truck that was parked at the site along Causeway Street near the famous Bobby Orr statue sustained significant damage.

A woman who was passing by the area said the beams fell several stories and sounded “like a bomb” when they hit the ground.

“The load was dangling and all of sudden it let go,” she said. “It sounded like a bomb. It was very loud.”

Work has since been halted at the construction site.

There were no reported injuries.

The TD Garden closed at the end of June to undergo a multi-week renovation project.

The incident occurred hours after a woman was struck and seriously injured by a piece of falling metal on Atlantic Avenue.

The Occupational Safety and Health Administration has been notified.

No additional information was immediately available.

This is a developing news story; stay with 7NEWS for update online and on-air.

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