Ethnic Karen children stare out from behind the bamboo bars of a stilted house at a refugee camp in Myanmar's Karen state, near the border with Thailand, June 6, 2007. Thailand has denied entry to 250 ethnic Karen refugees from Myanmar who said they had fled attacks by soldiers from the ruling military junta, Reuters witnesses and a refugee leader said on Thursday. Picture taken June 6, 2007. REUTERS/Sukree Sukplang (THAILAND)