The UN food agency delivered emergency food and vouchers for over 9.5 million people in Yemen in December, just shy of its 10 million monthly target in the famine-threatened country, a spokesman said on Tuesday. Yemens nearly four-year war and economic collapse have left 15.9 million people, 53 percent of the population, facing "severe acute food insecurity", and famine looms if immediate action is not taken, a survey said last month. "We were at a bit less than 10 million because the actual situation slowed down a bit the distribution in some areas. The security is not as good as expected in some areas," World Food Programme spokesman Herve Verhoosel told a Geneva news briefing. "Some of our trucks were also stopped for longer than usual in some security checkpoints." Verhoosel later clarified that the figures represented food aid that was "dispatched" to local distribution centers across Yemen but not all had been handed out to recipients yet.