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 initial amount reported, the Johns Hopkins University said late Friday.

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. It is a testament to the quick response after Johns Hopkins Hospital's emergency generators were overfilled,