Whiting, Indiana, refinery was operating normally following a leak from a pipeline that transports liquid material, the company said.

A spokesperson for the refinery said on Thursday that it experienced a release from a pipeline that transports material within its tank field. Darius Johnson reports from Whiting, and Chief Meteorologist Albert Ramon has an explanation of how the wind may have carried the stench far from Whiting.

A leak at the BP Whiting Refinery is releasing "odors" into parts of the Chicago area as crews work to respond to the situation, officials said Thursday.

A gas leak at BP's Whiting Refinery in Indiana caused odors in Chicago, with cleanup underway and no health risks reported.

The company has located and isolated the leak and brought in vacuum trucks to help with the cleanup. They have also set up air monitoring systems to keep an eye on any potential risks. BP said it is closely monitoring air emissions for any contaminants that could be harmful to public health,