The Convention ordered the arrest of Robespierre, his brother Augustin, Couthon, Saint-Just, François Hanriot, and Le Bas. Troops from the Commune, under General Coffinhal, arrived to free the prisoners and then marched against the Convention itself. The Convention responded by ordering troops of its own under Barras to be called out. When the Commune's troops heard the news of this, order began to break down, and Hanriot ordered his remaining troops to withdraw to the Hôtel de Ville, where Robespierre and his supporters also gathered. The Convention declared them to be outlaws, meaning that upon verification the fugitives could be executed within twenty-four hours without a trial. As the night went on, the forces of the Commune deserted the Hôtel de Ville and, at around two in the morning, those of the Convention under the command of Barras arrived there. In order to avoid capture, Augustin Robespierre threw himself out of a window, only to break both of his legs; Couthon was found lying at the bottom of a staircase; Le Bas committed suicide; and another radical shot himself in the head.

Robespierre tried to kill himself with a pistol but managed only to shatter his lower jaw (see figure in foreground of picture with bandage around jaw)