Armored vehicles rammed into the doors of Bolivia’s government palace Wednesday as President Luis Arce said the country faced an attempted coup, insisted he stands firm and urged people to mobilize.

In a video of Arce surrounded by ministers in the palace, he said: “The country is facing an attempted coup d’état. Here we are, firm in Casa Grande, to confront any coup attempt. We need the Bolivian people to organize.”

Arce confronted the general commander of the army — Juan José Zúñiga, who appeared to be leading the rebellion — in the palace hallway, as shown on video on Bolivian television. “I am your captain, and I order you to withdraw your soldiers, and I will not allow this insubordination,” Arce said.