It happened in the northbound express lane of I-95 in Ridgefield Park. Traffic is backed up as crews work to clean up the road.

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No word yet on what caused the wreck or how long it will take before the road is cleared.

So far, no injuries have been reported.

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It happened just before 1 p.m. Fire officials say the truck was carrying 3,000 gallons of diesel fuel and started leaking when it jackknifed, but there were no reports of injuries.

The upper level of the bridge from Staten Island to Brooklyn was closed for a time but reopened shortly before 2 p.m.

Check Current Traffic Conditions | Guide To NYC Traffic And Transit

Officials say drivers should expect delays, closures and detours in connection with 9/11 events at the World Trade Center site and should avoid the area if possible.

Other road closures through 5 a.m. Monday, Sept. 12:
Location: Brooklyn-bound West Street
Description: Underpass will be closed

When:  Sunday, September 11
Location: West Street will be closed from Albany Street north past the WTC site.
Description: Traffic leaving the Battery Tunnel will be detoured south to Battery Park or the Battery Park underpass.

Location: Battery Park underpass from southbound FDR Drive will be closed.
Description: Drivers going to Brooklyn can access the tunnel through local streets.

When: Sunday, September 11
Time: Starting at 5 a.m.
Location: Drivers heading to heading Brooklyn will not be able to access the Brooklyn-Battery Tunnel from West Street south of Albany Street.

If vehicles need to access streets entering and exiting Battery Park City, directions are below:

North of marina

• From all points, proceed to North End Avenue
• North on North End Avenue to Chambers, Warren and Murray streets
• East on Chambers and Warren to West Street

South of marina

• From all points, proceed to South End Avenue
• South on South End Avenue to W. Thames Street
• East (left turn) on W. Thames Street to Battery Place
• South (right turn) on Battery Place

For more information about bridge and tunnel closures, click here.

For more information about traffic and road closures, click here.

The Vesey Street and Liberty Street pedestrian bridges will be closed throughout the day Sunday.

For more information about subway and bus service, click here.