Updated

COVINGTON, La. (AP) — The U.S. Coast Guard has pulled commercial fishing boats from oil cleanup efforts in Breton Sound off the Louisiana coast after several people became ill.

The Coast Guard says crew members on three vessels reported nausea, dizziness, headaches and chest pains Wednesday afternoon. Four people were hospitalized, including one who was flown to a hospital.

The Coast Guard told all 125 commercial vessels that were helping clean up spilled oil to return to shore. Medical workers evaluated the crew members as a precaution.

Breton Sound is about 30 miles southeast of New Orleans.