Gunmen killed at least 20 people, including children, who were visiting their farms in Sudan's wartime Darfur region for the first time in years, a tribal chief said Saturday. "Two months ago the government organised a meeting between the original landowners and those who took their fields" during the long-running war in Darfur, Ibrahim Ahmad told AFP by telephone. "An agreement was reached whereby the landowners would return to their fields -- but armed men came on Friday and opened fire, killing 20 people, including two women and children." ab-sk/dwo/kir