A soldier has died from a "non-battle injury" while serving with the British Army in Estonia, the Ministry of Defence (MoD) has confirmed.
The circumstances surrounding the death of Private Reece Miller are not yet known.
The MoD confirmed his death on Tuesday.
In a statement, it said: "It is with great sadness that the British Army must confirm the death of Private Reece Miller from the 1st Battalion The Yorkshire Regiment (1 YORKS) as a result of a non-battle injury while serving in Estonia.
"The incident is currently under investigation.
"Our thoughts remain with his family and friends at this difficult time."
More than 800 British military personnel were deployed to Estonia in February this year to counter what Defence Secretary Gavin Williamson said was "the intensifying aggression aimed at Britain and our allies from the Russian State".