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Brazil security forces patrol in Rio amid surge of violence

A national security force officer patrols the Chapadao complex slum as residents walk by in Rio de Janeiro, Brazil, Monday, May 15, 2017. Hundreds of officers arrived to reinforce security in the city where heavily armed gangs run drug businesses from the slums and have shoot outs with rival gangs over territory. (AP Photo/Silvia Izquierdo) A national security force officer patrols the Chapadao complex slum as residents walk by in Rio de Janeiro, Brazil, Monday, May 15, 2017. Hundreds of officers arrived to reinforce security in the city where heavily armed gangs run drug businesses from the slums and have shoot outs with rival gangs over territory. (AP Photo/Silvia Izquierdo)

By Associated Press May 15, 2017 1 min read

RIO DE JANEIRO (AP) – A few hundred national Brazilian security forces are patrolling parts of Rio de Janeiro following a surge in violence.

The troops began patrols along busy thoroughfares in northern Rio on Monday. Many were also positioning themselves at the entrances to several favelas, or slums.

The patrols are expected to last 90 days, and could be extended.

Military police, civil police and firefighters from other states make up the force.

The deployment of national security forces in Rio follows a jump in violence in Rio, which hosted the 2016 Summer Olympics.

Several public buses and cargo trucks have been burned in recent weeks. There has also been an increase in in large slums like Alemao.