(CNN) - Former President George W. Bush's trip to Switzerland was canceled after human rights activists threatened legal action over allegations the former president approved the torture of terrorism suspects.
The New York-based Center for Constitutional Rights said it is prepared to file a complaint against Bush with the support of 50 NGOs, according to a statement from the group. CCR said Bush's presence on Swiss territory is required for a prosecutor to take action.
Bush was scheduled to speak in Geneva on February 12th at a dinner to honor the United Israel Appeal. CCR said the trip was canceled to "avoid our case."
David Sherzer, a spokesman for the former president, said the event was "called off" by the organizer.
"We regret that the speech has been canceled," Sherzer said in a statement. "President Bush was looking forward to speaking about freedom and offering reflections from his time in office."
The complaint will now be released at a press conference Monday on "the anniversary of the day, nine years ago, when Bush decided the Geneva Conventions didn't apply to 'enemy combatants,'" CCR said.
– CNN's Kevin Bohn and Becky Brittain contributed to this report