ana, you are pointing something out. tell us. reporter: yeah, george, that is the police headquarters. riot police positioned there. that is where they have been firing the tear gas, firing at multiple locations. but to that point, it is only a quarter past 5:00 in the afternoon. as we know, the running battles and violence only escalate as nightfall arrives. we saw the ugly violence after carely lam announced her face mask ban. protesters were setting fire to the network here, to shops considered to be pro-china, pro-hong kong government, state-owned bank of china also. real, yeah, just violence