While the long-term effects of Wednesday’s 2,000-gallon oil spill in the Baltimore Harbor are unknown, the city’s jewel has seen much worse.

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.

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,