The Icelandic volcano which grounded air traffic all over Europe is still erupting, but is spewing less ash, the meteorological office and experts said on Wednesday.
Close monitoring of the neighbouring and potentially more dangerous Katla volcano was also taking place, but there have been no signs it has re-awakened, they added.
"There is ongoing activity in the volcano and we don't see any signs of it coming to an end. There is less ash production, it is probably the same as yesterday," met office official Gudrun Nina Petersen told a news conference.
"The plume is very low, so most of the ash is falling here and keeping itself under 20,000 feet (6,000 metres)," she said.
"The amount of ash that is being produced is much less, but it is more polluted," added Sigurdur Gislason of the Institute of Earth Sciences, though he said this ash would mainly be a problem for the near vicinity of the volcano.