The US police officer filmed wrestling a black girl to the ground and pointing his gun at teenagers in Texas has stepped down, officials say.

A photograph was being widely shared on social media on the morning of April 27: a young man had his fist raised in the air as the police stood in formation while a store burned in the backdrop. "Baltimore unrest" were the words written in bold somewhere in the description of the photo.

The family of Michael Brown, a black 18-year-old killed in Ferguson last summer by a white police officer, will file a wrongful death lawsuit against the city, attorneys for the family.

A white South Carolina police officer is charged with murder after a black man who appeared to be fleeing from him was shot dead.

Two police officers are shot during protest outside the Ferguson, Missouri police department