Jordan Gatley left the British Army in March and flew out to Ukraine to help at the beginning of the invasion “after careful consideration”, wrote his father Dean Gatley in an emotional tribute on Facebook.

According to the post, Jordan was killed amid intense fighting in the city of Severodonetsk in eastern Ukraine. The family received the news on Friday.

His father confirmed “the devastating news that our son, Jordan, has been shot and killed in the city of Severodonetsk, Ukraine.”