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This undated handout photo made available on May 25, 2015 by the Royal Malaysian Police shows an abandoned migrant detention camp used by people-smugglers in a jungle near the Malaysia-Thailand border in Genting Perah. Malaysian police said May 25 they had found 139 grave sites and 28 abandoned detention camps used by people-smugglers and capable of housing hundreds, laying bare the grim extent of the region's migrant crisis. AFP PHOTO / ROYAL MALAYSIAN POLICE --- EDITORS NOTE --- RESTRICTED TO EDITORIAL USE -- MANDATORY CREDIT "AFP PHOTO / ROYAL MALAYSIAN POLICE" NO MARKETING - NO ADVERTISING CAMPAIGNS -- DISTRIBUTED AS A SERVICE TO CLIENTSROYAL MALAYSIAN POLICE/AFP/Getty Images
This undated handout photo made available on May 25, 2015 by the Royal Malaysian Police shows an abandoned migrant detention camp used by people-smugglers in a jungle near the Malaysia-Thailand border in Genting Perah. Malaysian police said May 25 they had found 139 grave sites and 28 abandoned detention camps used by people-smugglers and capable of housing hundreds, laying bare the grim extent of the region's migrant crisis. AFP PHOTO / ROYAL MALAYSIAN POLICE --- EDITORS NOTE --- RESTRICTED TO EDITORIAL USE -- MANDATORY CREDIT "AFP PHOTO / ROYAL MALAYSIAN POLICE" NO MARKETING - NO ADVERTISING CAMPAIGNS -- DISTRIBUTED AS A SERVICE TO CLIENTSROYAL MALAYSIAN POLICE/AFP/Getty Images

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    139 suspected migrant graves found in Malaysia

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139 suspected migrant graves found in Malaysia

Malaysian authorities have uncovered dozens of graves near camps believed to have been operated by human traffickers. CNN's Saima Mohsin reports.

139 suspected migrant graves found in Malaysia

Malaysian authorities have uncovered dozens of graves near camps believed to have been operated by human traffickers. CNN's Saima Mohsin reports.