A massive oil spill in the Baltimore Harbor that began Wednesday has now dumped 5,000 gallons of diesel fuel into the harbor, more than doubling the amount initially reported.

Many of the large pools of diesel fuel, noticeable by its distinct red color from dye, have been removed from Baltimore's harbor two days after a 2,000-gallon spill.

Emergency crews from a host of government agencies were working through the night to clean up an estimated 2,000-gallon diesel spill in Baltimore’s Inner Harbor that started on Wednesday.