Russia has simulated nuclear-capable missile strikes in the western enclave of Kaliningrad in the Baltic Sea, in a potential signal to the West, which has been heavily backing Ukraine, and an indication of how the conflict in Ukraine could escalate.

Russia defends its "sovereign" right to have missiles in Kaliningrad and elsewhere.

Russia has deployed advanced nuclear-capable Iskander missiles to its Kaliningrad enclave on the Baltic Sea, RIA Novosti news agency says.

More than 2,000 Russian forces have participated in major tactical drills in Kaliningrad.