By CBS3 Staff

PHILADELPHIA (CBS) — An oil spill on Broadkill Beach in Sussex County, Delaware appears to be spreading. According to initial estimates, more than 215 galloons of oil from an active “sea vessel” spilled into the Delaware Bay.

But, it appears the spill may be larger than first reported.

READ MORE: Some Students At Mitchell Elementary School Not Fed School Breakfast, Lunch Due To Staff Shortages

READ MORE: Atlantic City To Receive $50,000 State Grant To Help With Plan For New Use Of Former Trump Plaza Casino

The spill now covers at least seven miles of coastline.

MORE NEWS: Kensington Drug Boss, Ricardo Carrion, Convicted On Several Drug Trafficking Charges

Crews are working quickly to avoid a potential environmental disaster before it can affect wildlife like sea turtles, horseshoe crabs and sea birds.