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.

A 2,000-gallon diesel spill that originated at a hospital facility in Baltimore, Maryland, on Wednesday tainted a waterfront in a popular tourist spot in the city, but there was no impact on drinking water in the area,

Officials said the water is red because there is dye in the fuel, but there is no impact to the area’s drinking water.