Ed Koch is back in the hospital

Posted at 8:40 PM, Jan 28, 2013
and last updated 2013-01-28 20:41:44-05

Ed Koch is back in the hospital.

The former mayor was just released Saturday after spending a week at New York Presbyterian/ Columbia Medical Center.

A spokesman says that  Koch was readmitted Monday for more treatment on the fluid in his lungs.

Doctors have told the 88-year-old to cut his salt intake.

He was also in the hospital last month with a respiratory infection.