Last updated at 09:22

Why are people protesting in Ferguson, USA?

Ferguson anniversary protestGetty Images

Reports suggest that more than 100 people may have been arrested in the US city of Ferguson, during protests to mark the anniversary of the death of a black teenager.

Authorities in Ferguson have called a state of emergency because of the protests, which means normal rules are temporarily changed, so that the police can get control of the situation.

It comes a year after an 18-year-old called Michael Brown was shot dead by a white police officer.

The officer was not punished and that sparked major protests across America by people who said it showed black people's lives mattered less than those of white people.

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Jenny explains more about what was happening in Ferguson and across the US back in 2014.

Since then, a number of other unarmed black men have also been killed by police, and lots of people have claimed that black people are treated badly by the police.

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Find out what it's like growing up as a black child in America by watching this special Newsround programme.
2015 protests

The anniversary demonstration began peacefully. Crowds held a four-and-a-half-minute silence at the spot where Michael Brown died.

But the demonstrations became violent, and another black teenager was injured when guns were fired in a battle with police.

What happened in 2014?

Violent protests took place in Ferguson, Missouri, and in other parts of America.

The riots started after it was announced a white police officer would not be charged for shooting dead a black teenager, called Michael Brown, back in August.

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Protests spread through US cities

Shops were robbed, cars and buildings were set on fire, and bottles and stones were thrown.

US President Barack Obama called for the protests to stay peaceful.

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US President Barack Obama called for peaceful protest

He was echoing the views of Michael Brown's parents who also appealed for clam despite saying they were "profoundly disappointed" by the jury's decision.

They added: "Let's not just make noise, let's make a difference."

Many people in Ferguson, in the US state of Missouri, were angry because they feel black Americans are treated badly by the police.

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What's happening in Ferguson and why? BBC journalist Rajini Vaidyanathan explains

Protests also took place in other parts of America, including in New York.

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