A fire broke out at a shed-type building owned by Amtrak in Mystic Friday afternoon.
It happened near the railroad tracks in the area of Washington Street and Jackson Avenue, according to fire officials.
Amtrak service was halted in the area for a short time due to heavy smoke, but has since returned to reduced operations, fire officials said.
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The fire was put out and there were no injuries.
Streets in the area that were closed have since reopened.
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