At least 40 people were arrested after a protest at a shale gas development in the Canadian province of New Brunswick turned violent, say police. A shot was fired, petrol bombs were tossed and police cars torched at the blockade near the town of Rexton.
The Royal Canadian Mounted Police said arrests were made for firearms violations, threats and intimidation. Protesters have blockaded a staging area where an energy firm stores its equipment since 30 September.
Violence erupted as officers moved in to enforce a court injunction won by the company to remove the protesters' highway camp, said police.
Royal Canadian Mounted Police (RCMP) officials say at least five of their vehicles were set on fire and destroyed, Molotov cocktails were hurled at officers, and at least one shot was fired by someone who was not a police officer.