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Sen. Byrd Back In Hospital

In this May 15, 2008 file photo Senate Appropriations Committee Chairman Sen. Robert Byrd, D-W.Va., presides over the committee's hearing on markup of the 2008 supplemental appropriations bill, which included spending in Iraq, on Capitol Hill in Washington.
AP Photo/Lauren Victoria Burke
Ninety-one-year-old Sen. Robert C. Byrd of West Virginia has been hospitalized with what his office says is a spike in temperature.

In a statement, Byrd's office says he was hospitalized late Friday, is being treated with antibiotics and is expected to be released in a few days.

The statement says that according to doctors, the temperature spike was caused by a minor infection.

CBS News' Bob Fuss reports that "Byrd has served in Congress for more than half a century and is president pro-tem of the Senate - third in line in the presidential succession."

The aging senator has allegedly been slowing down of late and recently stepped down as chairman of the powerful Senate appropriations committee.