This happened to us in Ethiopia in 85. We had a ton of money to buy food, but we couldn't get it off the docks and into the country due to the corrupt government.
Actually the ports were tied up unloading Soviet military supplies.
And the famine, like most famines, was a deliberate attempt by the government to kill its opponents rather than some unfortunate act of God; the starving in Ethiopia didn't need Live Aid, they needed a division of US Marines>