Colombia is suspending safe passage for rebel leaders negotiating a peace deal in Cuba to visit guerrilla camps because top commanders showed up with weapons in a town's main plaza.

The announcement Thursday by government negotiator Humberto de la Calle followed the surprise appearance in photos of leaders of the Revolutionary Armed Forces of Colombia interacting with townspeople with heavily armed guerrillas standing by.

The meeting took place along Colombia's border with Venezuela.

As part of peace process the government has facilitated travel by FARC commanders back and forth from Cuba to rally troops. But De la Calle says they are not allowed to brandish weapons while on such missions.

De la Calle demanded Norway and Cuba, the peace talks' sponsors, take action so the commanders immediately return to Cuba.