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NEW CASTLE COUNTY, Del. (CBS) – An emergency response team battled a fire at the Delaware City Refinery Sunday. The blaze broke out at 4550 Wrangle Hill Road in Delaware City around 12:15 p.m. Sunday.

The blaze was placed under control just after 6 p.m., according to the New Castle Fire Department.

Fire officials say one person was transported to Christiana Hospital, although it is unknown at this time if it was a refinery worker or a firefighter.

The refinery has its own emergency response team on site, while local fire companies responded to assist.

Stay with CBSPhilly.com for this developing story.