Another word for tear-gas

Two days later a police tear gas canister was fired into a mosque during Friday prayers.

In all over a ton of tear gas was used, many canisters aimed directly at demonstrators to cause maximum injury.

When a tear-gas canister was thrown into the basement the two men decided to surrender.

disperse the crowd with tear gas.

Police used tear gas to disperse the protesters, some of whom were wearing gas masks.