Families of some of the 157 victims of Ethiopian Airlines Flight 302 received handfuls of charred land at a memorial service on Sunday rather than the body of their loved ones, according to Reuters. Many of the bodies of those who were aboard the fatal flight disintegrated on impact and could take up to six months to identify what little remains. Relatives of those on board were asked to provide DNA samples to the airline to help identify the remains. "The ground came when it became impossible to identify bodies and deliver the remains to family members," a mourner told The Associated Press. "We will not rest until we receive the real body or body parts of our loved ones." Ethiopian Transport Minister Dagmawit Moges told a news conference that it could take "considerable time" to determine the exact cause of the accident. Voice recorders and flight data are being analyzed in Paris. "An investigation of this magnitude requires careful analysis and considerable time to get to something concrete," he said.