Part of Boston Road in Westford, Massachusetts, is shut down on Wednesday afternoon after a crash involving a propane truck.

Westford police said the road was closed between Crown and Littleton roads because the truck was actively leaking. The Westford Fire Department was on scene assessing the situation.

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The public was warned to avoid the area and drivers are urged to find alternative routes.

Police did not say if anyone was injured in the crash or if any other vehicles were involved.

This is a developing story. Check back for updates.

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