Brazil police surround Rio de Janeiro drug traffickers

Brazilian police have surrounded a Rio de Janeiro slum, after the end of a sunset deadline to drug traffickers to turn themselves in or face an assault.

Hundreds of police and soldiers, some in armoured vehicles, have been deployed around the Alemao favela.

Authorities say the operation aims to make the city safer ahead of the World Cup in 2014 and Olympic Games in 2016.

Drug gangs have fought back over the past week, firing on police and setting fire to cars and buses.