An investigation has been launched after a Royal Navy sailor was discovered lifeless in a residence in Sweden. 

Four individuals, together with a 20-year-old British man, have been arrested however have now been launched, in line with the nation's prosecutor.

Those arrested additionally included two males and one lady who're all Swedish.

A Royal Navy spokesperson mentioned: "We are aware of an incident in Stockholm which resulted in the death of a serviceperson.

"We proceed to help native authorities of their enquiries, and it could be inappropriate to remark additional.

"Our thoughts and sympathies go out to the family and friends."

The sailor's subsequent of kin have been knowledgeable.

The Royal Navy was collaborating in a mock invasion train, referred to as Aurora, the place they defended Sweden's shoreline. The navy drill befell from 17 April to 11 May.

The train, led by HMS Albion, additionally included forces from France, Germany, Estonia, Finland, Latvia and Lithuania, in addition to the UK and Sweden.

Exercise Aurora was "the largest Swedish national defence exercise in more than a quarter of a century".