Helsingborgs demonstration chaotic - Police stops protesters. Several demonstrations have taken place in Helsingborg in relation to the NATO meeting. One of them was not authorized. Everything went smoothly, said Evelina Olsson, police spokesperson, when the demonstration was ongoing. Later, however, chaos broke out when several of the protesters suddenly started running, reported HD. They were stopped by police and pressed against a wall. There are no reports of injuries. Pictures show how the protesters were masked, black-clad and wore hoods.