Mount Redoubt, a volcano in Alaska, erupted on Saturday, sending out clouds of ash thousands of feet high. According to the Federal Aviation Administration, the Ted Stevens Anchorage International Airport was shut down after ash reached the airport. Jeremy Lindseth, a spokesman for the airport, said that only small amount of ash reached the airport, but was significant enough to disrupt operations, as ash can cause engine problems for aircraft. He said that he was uncertain of how many flights were affected due to the eruption.