WASHINGTON (AFP) - The International Monetary Fund has said that the poorest countries will need at least 25 billion dollars in additional financing this year to cope with the global financial crisis. IMF managing director Dominique Strauss-Kahn called for swift and generous action from the international community to help avert the potentially devastating effects of the deepening crisis on the most vulnerable countries. "After hitting first the advanced economies and then the emerging economies, a third wave from the global financial crisis is now hitting the world's poorest and most vulnerable countries," Strauss-Kahn said in a statement. "This puts at risk the major achievements of higher growth, lower poverty, and greater political stability that many low-income countries have made over the past decade. I urge donors to rise to the challenge and provide the financing needed to preserve these hard-won gains and prevent a humanitarian crisis," he said in a statement. He reiterated his goal to double the IMF's lending capacity to $500b. The IMF published a study Tuesday that found at least 25 billion dollars in emergency financing would be needed this year for the 22 low-income countries most affected by the crisis. "This represents about 80 percent of annual aid to all low-income countries in recent years," the Washington-based institution said. "If global growth and financing conditions deteriorate further, the number of vulnerable countries could almost double, while additional financing needs could approach 140 billion dollars." According to the IMF's most recent forecast, low-income country growth in 2009 is projected at just over 4.0 percent, more than two percentage points lower than expected a year ago. The 185-nation IMF has emphasized its forecasts are subject to great uncertainty in the midst of the worst global financial crisis since the Great Depression, with risks heavily on the downside. "Bilateral donors must ensure that aid flows are scaled up, not trimmed back," Strauss-Kahn said. "At a time when the advanced economies are spending hundreds of billions of dollars on fiscal stimulus and financial sector restructuring, we must find room to help low-income countries."