Colombian right-wing paramilitary groups have suspended plans to disarm thousands of gunmen in protest of a government decision to move one of their leaders from house arrest to a maximum security prison.

The rightist United Self-Defense Forces of Colombia, AUC, said Thursday that the demobilization plans are suspended until the government redefines what it calls "the rules of the game" and offers the necessary guarantees to restore confidence.

There was no immediate response from President Alvaro Uribe's government.

Last Friday, the paramilitary leader, Diego Fernando Murillo, was transferred to the high security prison. The move came one day after Mr. Uribe said he would not extradite Mr. Murillo to the United States to face drug charges if he cooperated with peace efforts to end Colombia's long-running civil war.

Some information for this report provided by AP and Reuters.