The Icelandic Met Office said lava flows were detected early this morning around Mount Sylingarfell, in a similar location to the eruption shortly before Christmas.
It said: “The eruptive fissure is approximately 3 km long. Lava flows mostly towards the west at the moment and the flow seems to be slightly less than at the start of the 18th of December eruption.”
It added lava fountains were reaching 50-80 metres with the volcanic plume rising about three kilometres.
The FCDO said seismic activity had affected the town of Grindavik and the area to the north of it plus the Blue Lagoon.
