SANAA, Yemen (AP) -- The U.N. human rights office and the international Red Cross say they are alarmed by the high civilian causalities in the violence in Yemen, where airstrikes by a Saudi-led coalition have been targeting Shiite rebels since last week. Tuesday's statement from Geneva said U.N. human rights staffers in Yemen have verified that at least 19 civilians died when airstrikes hit a refugee camp in northern Yemen, with at least 35 wounded, including 11 children. There were different reports of casualty figures from Monday's strike.