More than 30 molotov cocktails and crates of rocks were found during a rooftop search in Sydney's southern suburbs last night as the city endured a second consecutive night of race-related violence. The stockpile was discovered at south Maroubra, not far from where a mob smashed car windows on Sunday. Cricket bats, rocks and iron bars were also confiscated by police monitoring about 100 people who gathered near Maroubra beach. Rocks and flares were thrown at police trying to disperse the group, and a female constable was injured when a projectile struck her leg. Police were also hit with projectiles...