cox bazar bangladesh wild elephants trample death two rohingya muslims bangladesh monday rampage settlement refugees take shelter flee military offensive neighbor myanmar 410,000 refugees myanmar pour bangladesh since aug. 25 attack rohingya militants security post trigger myanmar army operation unite nations describe ethnic cleanse elephants forest close place many rohingya refugees clear forest make huts police official chailau murma tell reuters elderly person toddler kill elephants rampage area say three people take hospital treat injuries refugee camp leader say police say elephants late disappear back forest refugees face dire condition insufficient food water medical care shelter regular drench monsoon rain turn roads quagmires bangladeshi authorities say aim move everyone so-called spontaneous sit usually beside roads people try make shelter wherever one big camp aid supply properly distribute wild elephants trample two rohingya refugees bangladesh police