Russia’s Shiveluch volcano is under extremely high activity and a powerful explosion can occur at any time, the Kamchatka volcanic eruption response team has warned.

The country’s most active volcano and one of the largest in the Russian far East recorded a volcanic ash plume rising up to around 13000ft altitude on Saturday, according to the observatory.

“A growth of the lava dome continues, a strong fumaroles activity, an incandescence of the lava dome, explosions, and hot avalanches accompanies this process,” the observatory said on Sunday.

“Ash explosions up to 10-15kms (9.32 miles) … could occur at any time. Ongoing activity could affect international and low-flying aircraft.”

The dom of the volcano has become very hot and glows at night, Alexei Ozerov, the director of the Institute of Volcanology and Seismology of the Far East Branch of the Russian Academy of Sciences, told Russian state media RIA.

Read more: yahoo