Former New York City Mayor Ed Koch is back in the hospital this weekend after swelling built up in his ankles, his spokesman said.

Koch, a contributor to NY1′s Wiseguy segment on Inside City Hall, was admitted to the hospital this morning, and it is unclear how long he will stay.

This is the third time in the past six months that the former mayor and good-government crusader has been hospitalized.

Koch was admitted to the hospital most recently in December when he was treated for a respiratory infection.

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