oh. now they're -- now they are deploying a much heavier gas. >> miguel, why don't you stand by. >> reporter: i have gas in my eyes. >> keep your camera up as long as you can. we'll come back. we're going to go to gary tuckman. so stand by. gary tuckman, what are you seeing there? >> reporter: just what miguel was saying. the police have deployed tear gas and some concussion ordinance that has startled people here. there hasn't been any violence so far and that's the good news but the tear gas is very acute. most people have left. you can see there's riot police wearing their shield, their helmet but all of our nass are burning, our throats are burning. why did happen? i don't know. but there were water bottles thrown at police and the next thing we felt was burning tear gas. during donald trump's speech,