Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iceland Volcano Ash Disrupts UK Air Travel VOA News 15 April 2010 Smoke and steam hangs over the volcano under the Eyjafjallajokull glacier in Iceland Photo: AP Smoke and steam hangs over the volcano under the Eyjafjallajokull glacier in Iceland, 15 Apr 2010 Volcanic ash that spewed from a volcano in Iceland Wednesday has drifted over to Britain where it has forced authorities to close several airports and cancel flights. More than 150 flights at London's Heathrow Airport and hundreds more across England have been canceled early Thursday. There were also no flights going in or out of Scotland or Northern Ireland. Air traffic officials say the volcanic ash is a "significant safety threat to aircraft." Authorities on Iceland evacuated hundreds Wednesday after a volcano melted part of a glacier, flooding part of the southeastern area of the island. Experts say Wednesday's eruption was stronger than one that occurred last month under the same glacier. Police say no lives or property are in immediate danger and that the worst of the flooding appears to have subsided. Iceland sits on a North Atlantic volcanic hot spot. The volcano that has erupted twice since March 20th had been silent for nearly 200 years. Some information for this report was provided by AP and Reuters. .