A man calls for the prosecution of officer Darren Wilson outside a church where civil rights leader Al Sharpton spoke with community leaders. Picture: Lucas Jackson
A man calls for the prosecution of officer Darren Wilson outside a church where civil rights leader Al Sharpton spoke with community leaders. Picture: Lucas Jackson
Protesters throw rocks and attempt to block the street after protests in reaction to the shooting of Michael Brown turned violent near Ferguson, Missouri. Picture: Lucas Jackson
Protesters throw rocks and attempt to block the street after protests in reaction to the shooting of Michael Brown turned violent near Ferguson, Missouri. Picture: Lucas Jackson
Police officers defend the scene for firefighters to work after looting at the Dellwood Market amid protests in reaction to the shooting of Michael Brown in Ferguson. Picture: Lucas Jackson
Police officers defend the scene for firefighters to work after looting at the Dellwood Market amid protests in reaction to the shooting of Michael Brown in Ferguson. Picture: Lucas Jackson
A protester kicks a teargas canister back towards police after protests in reaction to the shooting of Michael Brown in Ferguson, Missouri. Picture: Lucas Jackson
A protester kicks a teargas canister back towards police after protests in reaction to the shooting of Michael Brown in Ferguson, Missouri. Picture: Lucas Jackson
Police wait to advance after using teargas to disperse a crowd during a protest march for Michael Brown, who was killed by a police officer in Ferguson. Picture: Charlie Riedel
Police wait to advance after using teargas to disperse a crowd during a protest march for Michael Brown, who was killed by a police officer in Ferguson. Picture: Charlie Riedel
A smoke canister lies on the street as demonstrators continue to protest the shooting death of Michael Brown in Ferguson. Picture: Ed Zurga
A smoke canister lies on the street as demonstrators continue to protest the shooting death of Michael Brown in Ferguson. Picture: Ed Zurga
People run from teargas as police disperse a crowd during a protest for Michael Brown. Picture: Charlie Riedel
People run from teargas as police disperse a crowd during a protest for Michael Brown. Picture: Charlie Riedel
A demonstrator raises his hands in the air as protests continue after the shooting death of Michael Brown. Picture: Ed Zurga
A demonstrator raises his hands in the air as protests continue after the shooting death of Michael Brown. Picture: Ed Zurga
In this photo taken with a fisheye lens, a man tries to recover from tear gas after people leave a McDonald's restaurant during a protest for Michael Brown. PIcture: Charlie Riedel
In this photo taken with a fisheye lens, a man tries to recover from tear gas after people leave a McDonald's restaurant during a protest for Michael Brown. PIcture: Charlie Riedel
A protester picks up a gas canister to throw back towards the police after teargas was fired at demonstrators marching over the death of Michael Brown in Ferguson, Missouri. File picture: Lucas Jackson
A protester picks up a gas canister to throw back towards the police after teargas was fired at demonstrators marching over the death of Michael Brown in Ferguson, Missouri. File picture: Lucas Jackson
"This is my Mike Brown," declares Jamile Thompson of St Louis as she holds her 18-month-old son, Carter Ramey, while calling out to cars during a rally on West Florissant Avenue in Ferguson. Picture: David Carson, St Louis Post-Dispatch
"This is my Mike Brown," declares Jamile Thompson of St Louis as she holds her 18-month-old son, Carter Ramey, while calling out to cars during a rally on West Florissant Avenue in Ferguson. Picture: David Carson, St Louis Post-Dispatch
Missouri State Highway Patrol Captain Ron Johnson speaks during a rally at Greater Grace Church for Michael Brown. Picture: Charlie Riedel
Missouri State Highway Patrol Captain Ron Johnson speaks during a rally at Greater Grace Church for Michael Brown. Picture: Charlie Riedel
People donate money for the family of Michael Brown during a rally. Picture: Charlie Riedel
People donate money for the family of Michael Brown during a rally. Picture: Charlie Riedel
The parents of Michael Brown, Michael Brown Senior and Lesley McSpadden, listen to a speaker during a rally for their son. Picture: Charlie Riedel
The parents of Michael Brown, Michael Brown Senior and Lesley McSpadden, listen to a speaker during a rally for their son. Picture: Charlie Riedel
Civil rights activist Al Sharpton speaks at the Greater St Mark Family Church about the need for long-term change as he discusses reactions to the shooting of teenager Michael Brown in Ferguson. Picture: Lucas Jackson
Civil rights activist Al Sharpton speaks at the Greater St Mark Family Church about the need for long-term change as he discusses reactions to the shooting of teenager Michael Brown in Ferguson. Picture: Lucas Jackson
Protesters gesture as they stand in a street in defiance of a midnight curfew meant to stem ongoing demonstrations in reaction to the shooting of Michael Brown in Ferguson. Picture: Lucas Jackson
Protesters gesture as they stand in a street in defiance of a midnight curfew meant to stem ongoing demonstrations in reaction to the shooting of Michael Brown in Ferguson. Picture: Lucas Jackson

Authorities on Sunday imposed a midnight curfew for the second night in a row in the tense St Louis suburb where an unarmed black teenager was shot to death last week by police.

The death of Michael Brown, 18, has sparked tense and sometimes violent protests in Ferguson, Missouri.