The exact cause of the Boeing 737-800 crash is still unknown, but investigators have pointed to a bird strike, faulty landing gear and the runway barrier as possible issues.

South Korean investigators said Friday they expected to find more human remains as they began lifting the wreckage of the Jeju Air jet that crashed on landing last weekend killing all but two of the 181 passengers and crew aboard.

South Korea was set Friday to move the tail section of the Jeju Air plane that crashed last week, killing 179 people in the worst aviation disaster on its soil, officials said.The investigation is headed by South Korean air safety officials,