Some of La Plata's residents set up roadblocks to protect their neighbourhoods from looters.

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The army and marine units have been despatched to the area and have set up roadblocks.

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On Wednesday night, some of La Plata's residents set up roadblocks to "protect their neighbourhoods from looters".

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Newport said the rebels have set up roadblocks so the rangers are making their way through woods south to safety.

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In the state of Guerrero, for instance, in 2013 armed citizens groups set up roadblocks, taking the law into their own hands.

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They set up roadblocks, official or unofficial ones.

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Roadblocks have been set up around affected areas to stop anyone entering.

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They have already won a small victory: an American-financed army unit set up last year to clear coca farmers' roadblocks in the Chapare (formerly the main growing area) is being disbanded, after several mistakes by trigger-happy troops.

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They were highwaymen, who set up illegal checkpoints, charging "road taxes" from anyone unlucky enough to stumble upon one of their roadblocks.

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