Mourners gather for funeral of US teenager Michael Brown

Hundreds of people are gathering for the funeral of Michael Brown, the unarmed American teenager who was shot dead by police on 9th August.

Speaking ahead of the ceremony, the teen's father called for calm, saying: "We need a moment of silence on our son. We need peace on his going-away."

Three White House officials will attend the service.

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Unarmed youth shot after 'altercation' in patrol car

The police chief in the Missouri city where a police officer shot and killed an unarmed 18-year-old has said that the incident began with a "physical altercation" in a patrol car.

St. Louis County police chief Jon Belmar gives a media briefing today. Credit: NBC News

St. Louis County police chief Jon Belmar said shots were fired in the vehicle before the unnamed officer continued to struggle with Mike Brown a short distance from the car before firing the fatal shot.

Protesters could be heard outside the room where the police chief was giving a media briefing this morning local time.

The police officer responsible for killing the teenager, who was walking to his grandmother's house on Saturday afternoon, has been put on paid leave while the incident is fully investigated.

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