The Venezuelan government reacted angrily to a meeting on Wednesday between an opposition leader and President Juan Manuel Santos of neighboring Colombia. The foreign minister of Venezuela, Elías Jaua, threatened to terminate his nation’s role as a facilitator of peace talks between Colombia and that country’s largest rebel group. Mr. Jaua lashed out in a television broadcast at Mr. Santos for meeting in Bogotá, Colombia, with the opposition leader Henrique Capriles Radonski, who narrowly lost an April election won by Nicolás Maduro, the handpicked successor of Venezuela’s longtime president, Hugo Chávez. Mr. Chávez died in March. “President Santos has taken a step that, it must be said, will lead in a painful way to the derailing of the good relations we have,” Mr. Jaua said. He said that Mr. Maduro had recalled the country’s representative to the peace talks to discuss the situation. Colombia and the rebel group, the Revolutionary Armed Forces of Colombia, or FARC, began peace negotiations in Havana last fall. Mr. Santos had praised Mr. Chávez, who had close ties to the FARC, for helping bring them to the table.