ALBANY, N.Y. -- The superintendent at the prison where two killers broke out has been placed on leave along with his security chief and 10 other staff members amid an internal investigation into how the inmates pulled it off, a state official said Tuesday.

The 12-member group is in addition to the guard and the prison tailor shop instructor who have been arrested on charges they helped the escapees.

Officials would not say what connection, if any, the 12 had to the June 6 escape from the maximum-security prison or the failure to prevent it.

Meanwhile, the surviving convict, David Sweat, claimed from his hospital bed that he used no power tools to cut his way out, contrary to what authorities have said.

Sweat was wounded and captured Sunday near the Canadian border after three weeks on the run. His accomplice, Richard Matt, was shot to death last week.

Steven Racette, the $132,000-a-year superintendent of the Clinton Correctional Facility in Dannemora, was removed along with Stephen Brown, deputy superintendent in charge of security, according to a state official who was briefed on the matter but wasn't authorized to discuss it publicly and spoke on condition of anonymity. The 12 also include guards.

The Corrections Department said only that three executives and nine other staff members were placed on paid leave as part of a departmental review of the escape. It did not identify them. The department said it is bringing in new leadership.

Cherie Racette, the superintendent's wife, told the Adirondack Daily Enterprise he was given the option of taking a demotion or retiring and chose retirement. She said he and two deputies are being made scapegoats by Gov. Andrew Cuomo.

Brown did not immediately return a call for comment.

Sweat's condition was upgraded from serious to fair at the Albany hospital where he was taken after being shot twice by a state trooper.

Matt and Sweat cut holes in their cells and a steam pipe and made their way to a manhole outside in a breakout that embarrassed the Corrections Department, exposed a host of possible security lapses and set off a manhunt involving more than 1,000 law enforcement officers.

District Attorney Andrew Wylie said Sweat told investigators that he started cutting through steel cellblock walls in January with only a hacksaw blade and used no power tools. Authorities had previously said the two men used power tools borrowed from contractors' toolboxes at night.

Prosecutors have said tailor shop instructor Joyce Mitchell got close to the men, supplied them with hacksaw blades and other tools, and agreed to be their getaway driver but backed out at the last moment. She has pleaded not guilty.

Guard Gene Palmer was also arrested, telling investigators he gave the convicts such things as tools, art supplies and access to a catwalk electrical box in exchange for paintings by Matt. But he said he never knew of their escape plans.

Sweat, 35, had been serving life without parole in the killing of a sheriff's deputy. Matt, 49, was doing 25 years to life for the kidnapping and hacksaw dismemberment of his former boss.

Associated Press writer Michael Hill in Albany, New York, and writer Michael Balsamo and video journalist Bonny Ghosh in Plattsburgh, New York, contributed to this report.