pbr A cargo plane crashed into a housing complex in Karachi soon after takeoff, setting off a huge blaze and killing all eight Russian crew on board, Pakistan's civil aviation authority said.br ppbr At least one person on the ground was injured, but the Russian-made plane missed several densely populated apartment blocks by a few hundred yards.br ppbr About 20 houses were damaged or destroyed though most were under construction and believed to be unoccupied, locals said.br ppbr The Sudan-bound plane crashed around early Saturday morning, when many people in the upscale neighbourhood of Pakistan's largest city were asleep.br ppbr One of the plane's engines was on fire when it flew overhead, several witnesses said.br ppbr "I live nearby here, and one plane took off from the airport and the right side of this plane was already on fire.