This is one of the few cases of insurgents using CS gas. The reaction also led to the discovery of CS gas. PAVA is significantly more potent than CS gas. Some types have an additional payload of CS gas. The troops replied by launching CS gas at the crowd. Its effects are approximately 6 to 10 times more powerful than those of CS gas. Clothing affected by CS gas will need to be washed several times. The soldiers fired rubber bullets, CS gas and water cannon. They may use tear gas or CS gas to control rioters. The youths continued to throw stones and the soldiers responded with more CS gas. In the U.S. military the standard CS gas cartridge is designated M651. British police forces have traditionally used CS gas spray. Nolan also documents the VC use of CS gas in his narrative of the attack. CS gas is generally accepted as being non-lethal. Israel Police forces spray CS gas in riot control situations.