A British serviceman on a navy drill in Sweden has been discovered useless after an evening out. The 25-year-old was on HMS Albion for the Aurora 23 defence train between April 17 and May 11.

Four individuals have been arrested and a homicide investigation has been launched, in response to Swedish news web site Expressen.

The identical publication experiences that the British man was on an evening out with a colleague in Stockholm.

They reportedly ended up at a house in Solna with a gaggle of Swedes.

The 4 individuals have been arrested on suspicion of homicide. One of these arrested is believed to be the colleague the British serviceman was out with.

The the rest are reported to be Swedes aged of their 20s and 30s.

A Royal Navy spokesperson mentioned in a press release: "We are aware of an incident in Stockholm and we are assisting local authorities in their investigation.

"It can be inappropriate to remark additional."

The amphibious flagship, HMS Albion, had led the Littoral Response Group into the Baltic Sea for Aurora, which was the largest Swedish national defence exercise in more than quarter of a century, according to the Royal Navy.

Royal Marines made three amphibious landings along Sweden’s coastline during the exercise.

Marines from 45 Commando stormed beaches in Gotland and crashed ashore on the island of Korso as well as on the Stockholm archipelago in the exercise involving service personnel from countries including Estonia, Finland, France, Germany, Latvia and Lithuania.

Military personnel also took part in a night time raid on an airfield in Oskarshamn, southern Sweden.

The three-week exercise saw more than 26,000 people from the Swedish Army, Swedish Navy, Swedish Air Force and Home Guard take part as well as servicemen from 14 more countries. 

Major Lee Stewart, in command of X-Ray Company of 45 Commando, said during the exercise: "The state of affairs right here within the Baltic is that an adversary has begun an invasion of Sweden. 

"The UK, US and other partner nations have been called upon to help defend Sweden and defeat the enemy."

He added: "Aurora is one of the best exercises we’ve taken part in for some time."

Commanding Officer, Captain Marcus Hember, mentioned: "Aurora has been a great proving ground in demonstrating the flexibility of amphibious ships like HMS Albion, enabling fast and lethal strikes by our embedded Royal Marines in 45 Commando whilst seamlessly supported by the ship and its crew.

"We’ve demonstrated our means to train with our regional companions, including vital functionality, and proven we are able to ‘turn up when needed’."

The RAF and British Army were also involved in the drills as Sweden switches its focus from operating internationally to national defence.

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