Thai police on Friday found at least 30 graves believed to belong to migrants from Myanmar and Bangladesh at what authorities say is an abandoned trafficking camp in remote jungle in Thailand's south, police said. Illegal migrants, many of them Rohingya Muslims from western Myanmar and from Bangladesh, brave often perilous journeys by sea to escape religious and ethnic persecution and to seek jobs in Malaysia and Thailand, a regional human trafficking hub. Four bodies had been exhumed so far, the local police said. A total of at least 30 graves were found in a "well set up" smuggling camp.