BOSTON (CBS) — A truck fire shut down part of the Tobin Bridge during Tuesday’s morning commute.

A truck fire tied up traffic during the morning commute. (Credit: State Police)

A truck fire tied up traffic during the morning commute. (Credit: MassDOT)

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State Police say the fire started around 8:20 a.m. on the southbound side of the Tobin.

Chelsea and Boston Fire used foam to extinguish the truck, owned by Next Generation Vending and Food Services out of St. Louis, Missouri.

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One lane was able to pass over the bridge by 8:50 a.m.

The entire roadway was reopened an hour later.

State Police say no injuries were reported.

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They are investigating what caused the fire.