Published: Jan 29, 2013 5:52 PM EST

NEW ORLEANS — The Coast Guard continues to respond to a crude oil spill in the lower Mississippi River near mile marker 436 in Vicksburg, Miss., Tuesday.

A lightering and salvage plan has been approved and multiple response crews have been dispatched to begin removing oil from the damaged barge.

Response crews have deployed 2,800-feet of boom to contain the source of the oil leak. Skimming vessels have recovered approximately 2,300 gallons of oil-water mixture since the incident occurred. The tank levels are being continually monitored. The leaking tank contained approximately 80,000 gallons of light crude oil. An estimated 7,000 gallons of oil is unaccounted for with an unknown quantity potentially contained in the void spaces of the damaged barge.

The Mississippi River remains closed to all traffic for a 16-mile distance between mile marker 425 and mile marker 441 near Vicksburg. Currently there are 21 northbound and 34 southbound vessels affected due to the river closure.

Mississippi River vessel traffic queue management is ongoing. Vessels will be allowed to transit the area as soon as it is environmentally and operationally safe to do so.

The Coast Guard investigation into the incident is ongoing.