The military authorities sent troops against the demonstrators, leading to many arrests and possibly several hundred deaths due to the violence in the streets. The Socialist Revolutionaries and Mensheviks supported punitive measures against the insurgents. They began to disarm workers, disband revolutionary military units, and carry out arrests. On July 5–6 the offices and printing plant of "Pravda" and the headquarters of the Bolshevik Central Committee were destroyed. On July 7 the Provisional Government issued an order for the arrest of Lenin, who was forced to go underground. On July 8 troops loyal to the regime arrived in Petrograd from the front.