Residents and volunteers digging in the mud in search of survivors and bodies at the scene of a landslide in Gofa. [AFP]Ethiopia announced on Friday three days of mourning following a devastating landslide in a southern remote part of the country where more than 250 people lost their lives. UN humanitarian agency OCHA, citing local authorities, said on Thursday that 257 people have died and warned the toll could reach 500. "The House of Peoples' Representatives has announced a three-day national mourning for the people who lost their lives in the landslide accident," Ethiopia's parliament said, adding that it would start from Saturday. The Ethiopian Disaster Risk Management Commission said earlier Friday that humanitarian aid and rehabilitation was "well under way" in the region.