DETROIT -

U.S. Rep. John Dingell has undergone a procedure to correct an abnormal heart rhythm.

Spokesman Christopher Schuler said the minimally invasive procedure was performed Thursday at Detroit's Henry Ford Hospital.

Dingell recently developed atrial fibrillation. The procedure sought to find the source and correct it.

Dr. Claudio Schuger, director of electrophysiology at Henry Ford, performed the procedure in the cardiac catheterization lab to correct the right atrial flutter.

Schuler says the 87-year-old Dearborn Democrat "is resting comfortably" and will be released from the hospital Friday.

Schuler says Dingell "plans to return to work as Congress reconvenes" March 24 and will have a light workload during the time in between.

Dingell said last month he will not seek re-election this year. He's the longest-serving congressman in history.

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Dingell's wife, Debbie, is running for his Detroit-area seat.

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--Debbie Dingell