A volcano in Iceland is being monitored over fears it may erupt, it has emerged.
Scientists are keeping a close eye on the site after glacial ice pouring from the crater of the subglacial Grimsvotn volcano triggered the concern.
The river Gigja has reached its maximum level due to the ice water, Icelandic Meteorological Office geophysicist Steinunn Jakobsdottir said.
It is thought that this, alongside three small earthquakes in a week at the site, could trigger an eruption.
Grimsvotn last erupted in 2004, when flood waters were at similar levels to those observed on Wednesday.
It lies under the uninhabited Vatnajokull glacier in south-east Iceland.
Scientists said Grimsvotn only erupted for several days in 2004 and is unlikely to lead to the air travel chaos caused by ash spewing from the Eyjafjallajokul volcano in April.