The Swedish military will also contribute one of its ASC 890 surveillance aircraft, made by Saab, and the country's coast guard will deploy four ships.

Sweden announced that it would contribute up to three warships and a surveillance aircraft to a Nato effort. The warships are being sent to monitor critical infrastructure and Russia’s “shadow fleet”

Sweden's government says the country will contribute up to three warships to a NATO effort to increase the alliance’s presence in the Baltic Sea as it tries to guard against sabotage of underwater infrastructure.