On 28 April Finland's military fired depth charges as a warning against a suspected submarine in waters near Helsinki.
This comes amid heightened tension in the area and follows a suspected submarine in Swedish waters in October 2014.
On 20 April Swedish press ran a story debating the legal framework for using armed force against submerged submarines during peace.
/ Sally
This comes amid heightened tension in the area and follows a suspected submarine in Swedish waters in October 2014.
On 20 April Swedish press ran a story debating the legal framework for using armed force against submerged submarines during peace.
/ Sally
