The former leader of the House of Representatives, Dennis Hastert, is recovering from surgery to remove his gall bladder, his office said Tuesday.

A short statement from the 65-year-old Republican's office provided no details, and did not specify when the surgery took place, adding only that Hastert had the surgery at Rush University Medical Center in Chicago. It did not indicate whether he had been released.

A hospital spokesman could not immediately provide any information.

Hastert, who represents a district in suburban Chicago, is expected to make a full recovery and plans to resume his full schedule, the statement said. He lost his post as House speaker when the Democrats won a majority in last year's elections, but he retained his seat in the Congress.

Messages left for a Hastert spokesman were not immediately returned Tuesday afternoon.

Hastert was the longest-serving Republican speaker in history, holding the post from 1999 until earlier this month, when he handed over to Democrat Nancy Pelosi.

Last July, Hastert spent several days in a suburban Maryland hospital after being treated for a skin infection.