Danish air traffic officials say an Icelandic ash cloud has partly closed airspace over Greenland, affecting flights between Copenhagen and the Arctic island's main airport.
Naviair says ash from the Grimsvotn (GREEMSH-votn) volcano on Sunday reached eastern Greenland, a semiautonomous Danish territory.
Air Greenland said its Monday flight between the island's main airport and Copenhagen was canceled because of the ash.
Iceland, 310 miles (500 kilometers) east of Greenland, shut its main airport Sunday after the eruption. Aviation officials in Oslo said the cloud might also affect flights between mainland Norway and the Arctic islands of Svalbard later Monday. London's Met Office said the ash may reach British airspace later this week.