Tweet produced a flood of images of  alleged police brutality and critical posts

NYPD's twitter campaign backfires

23 Apr A campaign by the New York Police Department to improve communication with the public backfired after its Twitter page received thousands of negative tweets.

A Brazilian police special forces member takes position during a violent protest in a favela near Copacabana in Rio de Janeiro

Violent protests in Rio after death of man

23 Apr Violent protests have broken out in Rio's landmark beachfront district of Copacabana, following the death of a resident less than two months before Brazil hosts the World Cup.

Barack Obama is seeking to re-emphasise key Asian alliances

Obama seeks to reassure Asian allies

23 Apr US President Barack Obama has said Washington welcomes China's rise but that engagement with Beijing would not come at the expense of its Asian allies.

UKIP leader Nigel Farage claimed only his wife was suited to the job of being his assistant

Hundreds apply for UKIP leader's wife's job

23 Apr Hundreds of British workers have come forward to challenge Nigel Farage's claim that only his wife is capable of doing the job of being his assistant, an employment agency has said.

Justin Bieber posted a picture on his Instagram account showing a visit to a controversial Japanese war shrine

Bieber caught up in Japan war shrine row

23 Apr Justin Bieber has become embroiled in controversy after posting a picture of a visit to a Japanese war shrine that counts convicted war criminals among the fallen warriors it honours.