The Nigerian police in Lagos State have vowed to clampdown on sellers and users of fireworks across the state following series of explosions in Lagos Island yesterday in which one person was killed and 10 houses and 11 cars burnt.The Nigerian police in Lagos State have vowed to clampdown on sellers and users of fireworks across the state following series of explosions in Lagos Island yesterday in which one person was killed and 10 houses and 11 cars burnt.