NEW YORK (CBSNewYork) — The Cross Bronx Expressway has reopened to all traffic following an earlier tractor-trailer fire.

The westbound lanes were closed for approximately three hours.

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There are still heavy delays back to the Bruckner Interchange.

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The closure also caused an hour delay at the George Washington Bridge throughout the morning.

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It’s unclear what caused the tractor-trailer fire or whether anyone was hurt.