The Nabro volcano began belching plumes of ash at about midnight on Sunday after a string of earthquakes. Scientists initially wrongly identified the source of the eruption in the region close to the Ethiopian border as the nearby Dubbi volcano.

Dubai’s Emirates Airline said it was canceling its flight transiting through the Ethiopian capital Addis Ababa on Tuesday due to airspace restrictions around Ethiopia.

Ethiopian Airlines officials told Reuters they had canceled flights to the Sudanese capital Khartoum, neighboring Djibouti, as well as several domestic flights to Ethiopia’s north. Kenya Airways said it had canceled a flight from Addis Ababa to Djibouti but that otherwise all its flights were operating as usual.

“The ash’s direction and its intensity were very high on Sunday, but this morning the Modis (monitoring) satellite shows a weakening,” said Atalay Arefe, natural sciences professor at Addis Ababa University.

Satellite images on the France-based Volcanic Ash Advisory Center’s (VAAC) website showed the cloud spreading in the region.

Not known to have previously erupted, Nabro burst into life after a string of earthquakes, the biggest of which measured 5.7, according to the US Geographical Survey. VAAC said the initial eruption threw an ash cloud 13.5 km high.

The online Earthquake-Report also said the intensity of the eruptions appeared to be subsiding.

“Based on the data from VAAC, we can clearly see that the eruption is winding down. There is some remaining activity as ash clouds are still (being) blown in the atmosphere (up to) an altitude of 20,000 feet (6,096 meters),” Earthquake-Report said.

Authorities in Ethiopia and Eritrea reported no casualties around the volcano. It was hard to verify these reports because of the difficulty accessing the arid region.