MANASSAS, Va. (WUSA9) -- Trains are moving again after empty canisters caused delays on tracks north of Manassas Park Friday morning, according to Virginia Railway Express.

Train 324 is waiting to get into Manassas Park Station and train 326 is right behind it.

Norfolk Southern Police have investigated and cleared the scene. They say the canister was off the side of the track and has been deemed safe.

Manassas Park Police will clear the scene soon.

Passengers may want to find alternative transportation. VRE says the Metro option is available.

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