The statewide fire ban, issued June 14, applied to open burning, including campfires, warming fires, charcoal grill fires, fused explosives and private use of fireworks, officials said.

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The BBC's Jon Sudworth in Beijing says there has been much debate over whether the use of fireworks should be reduced, in part to help curb pollution.

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The chief investigator in the southern Brazilian city of Santa Maria has said that cheap fireworks meant for outdoor use caused a deadly nightclub fire.

BBC: Brazil fire caused by cheap fireworks, say police

The police chief in Santa Maria, in the southern state of Rio Grande do Sul, said that the fire was caused by cheap fireworks meant for outdoor use.

BBC: Brazil Santa Maria nightclub fire death toll rises to 240

He said it was because the festival involves the use of candles, tea lights and fireworks.

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In Indiana, fire officials are cautioning against shooting off fireworks, with some counties banning their use by residents.

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Recommendations in the report covered sharing of information about hazards at scenes such as fireworks and about risks faced by firefighters, and also guidelines on the use of firefighters' helmets, gloves, fire hoods, and eye and hearing protection.

BBC: Firework impact damage to helmet