Thousands of anti-globalisation demonstrators have braved a stiff security cordon to confront world leaders at a Swiss mountain resort and denounce a threatened U.S. attack on Iraq.
But hundreds more protesters were blocked on Saturday at controversial police checkpoints outside Davos, the Swiss ski resort where movers and shakers from business and politics flock to the World Economic Forum's annual meeting.
Many later regrouped at a regional railway junction in nearby Landquart and clashed with police. A police spokesman said officers used tear gas and water cannon on the crowd.