The Russian Navy’s first Graney Class nuclear-powered attack submarine, the Severodvinsk, has begun sea trials.

Designed to launch long-range cruise missiles, the Graney Class vessel is built to track and destroy submarines, surface warships and land-based targets.

The submarine includes mines and anti-ship missiles, 24 cruise missiles and eight torpedo launchers.

The navy is expected to receive around ten Graney Class vessels by 2020, according to RIA Novosti.