Parts of central Gothenburg were closed off on Thursday after a fishing boat caught and brought to shore what Swedish navy technicians identified as a World War Two mine, police confirmed on Thursday.
A fishing boat arrived at the west coast port city late on Wednesday to unload its catch which after inspection was shown to include what those working on the dock thought was a bomb.
Police were called to the scene and cordoned off the area, taking photos of the object which were sent to the navy which later confirmed that the object was probably a naval contact mine dating back from World War Two.
Mines dating from both world wars are occasionally found in the waters along the west coast of Sweden.
A 1,100-metre radius around the mine, covering large parts of the central districts of Majorna and Masthugget were closed off to the public, seriously interrupting traffic in Sweden's second biggest city, while military experts worked on dismantling the explosive, police said in a statement, Reuters reports.
Russian President Vladimir Putin, in his speech dedicated to the Day of the Russian Navy, recalled the threats that Russia is currently facing from a number of countries.