Four killed in helicopter crash in Brazil's Rio de Janeiro

Emergency personnel stand near the site where, according to fire department officials, a helicopter crashed killing the pilot and 3 tourists. (AP Photo)Four people were killed after a helicopter crashed in Rio de Janeiro's Tijuca National Park on Saturday, Brazilian fire officials said. Brazilian media reported that three of those killed were Colombian tourists.The helicopter crashed in a mountainous part of the national park, an area covered by dense vegetation and difficult to access. Firefighters said the pilot and three women "burned to death".Images released by the fire department showed the charred wreckage of the helicopter smoking on a steep hillside.A police source told AFP that the victims had not yet been officially identified. However, local media reports said the three female