Armed police have been guarding a residential street in Dunedin overnight after a clash between rival gangs involving baseball bats and guns. Police arrived at the known gang address on Allenby Ave in Pine Hill just after 4pm yesterday after dozens of calls from worried residents. Half an hour later, a gang member was discovered at Dunedin hospital with a gun shot wound to the arm. Ten gang members were taken into custody - five Mongrel Mob members, five Black Power.