UPDATE 7/10: Fire crews were at the Hague following Thursday's storm to replace booms, which had been put in place to keep fuel from spilling into the drains.
UPDATE 6/27: Officials say Monticello Ave. has reopened.
NORFOLK- Crews are on the scene of an apparent diesel fuel leak at Hampton Roads Transit on Armistead Avenue.
Monticello Avenue and Granby Street are blocked off from Princess Anne to 18th Street.
An estimated 3500 gallons of diesel fuel have leaked, according to Norfolk Fire spokesperson Julian Williamson.
Officials said a broken sensor on an HRT generator incorrectly detected the fuel tank was low. So when fuel was pumped into the tank, it overflowed. Some of the fuel went on the ground and some went into the storm water system.
Crews are now working to contain the fuel and then remove it. They are also working to prevent the fuel that got into the storm water system from flowing into the Elizabeth River.
Fire crews and the Department of Environmental Quality are on the scene to assist in clean-up efforts.
Stay with 13News Now and wvec.com for the latest on this developing story.