Officers also deployed gas canisters, clearing the encampment and moving the protesters down University Boulevard away from campus. Observers said they saw law enforcement deploy rubber bullets.

He said: “Even tear gas remains questionable in most circumstances; using it is certainly an abuse in situations of clearly peaceful protest.

A U.S. District Court Judge ordered Denver police on Friday not to use tear gas, plastic bullets and other "less-than-lethal" force such as flash grenades against protesters, unless approved by a ...

Zurich police used tear gas and rubber bullets to try to break up a group of around 100 Kurdish activists holding an unauthorised demonstration outside the Turkish consulate in Switzerland's ...