Kuwait riot police on Sunday fired tear gas and stun grenades to disperse hundreds of opposition protesters who were demanding the release of a detained opposition leader. Witnesses said riot police armed in armoured vehicles fired tear gas and stun grenades at the protesters as soon as they marched toward a courts complex in the capital Kuwait City, forcing them to flee. police also chased them into narrow streets of Kuwait City markets to ensure they do **t reach the courts complex, where opposition leader Mussallam al-Barrak is scheduled to face trial on Monday. The protesters, a number of whom were treated for inhaling gas, had earlier rejected appeals by police ******rs **t to march.