Two of Europe's busiest airports -- London's Heathrow Airport and Amsterdam's Schiphol Airport -- closed down on Monday as a dense cloud of volcanic ash drifted from Iceland, aviation authorities said.
Since Thursday, April 15, flights into and out of Europe have taken a severe beating due to volcanic eruption in southern Iceland, with ashes being spewed into Europe's busy airspace.
London's airspace, one of the world's busiest travel routes, was temporarily closed on Friday due to a computer failure, causing severe disruptions in domestic and international flight operations.