REYKJAVIK, Iceland (AP) - Iceland's authorities have raised the aviation warning code for a region close to a subglacial volcano after a small fissure eruption in the area.
Sunday morning's eruption followed a smaller one in the same site on Friday that also prompted authorities to briefly raise the aviation warning code to restrict flights in the area.
The red warning code - the highest in the country's alert system - meant that no flights are allowed in an airspace area of about 40 square nautical miles north of the eruption area, up to 6,000 feet (1.1 miles) from the ground. Aviation officials said the restrictions do not affect commercial flights, which fly much higher than that.
No volcanic ash has been detected, and the Civil Protection Department said all Icelandic airports remained open.