21-year-old Jonathan Wigley, who grew up in Grantham, was on a UK Task Force operation in the Helmand province according to the BBC.
British troops attacked a Taliban-held valley but fighters withstood air-strikes and gunfire and launched a strong counter-attack.
Marine Wigley, who joined the Royal Marines when he was 17, was wounded and airlifted to the UK military hospital at Camp Bastion, but died of his injuries.
Another Marine injured in the operation underwent surgery at Camp Bastion and is now in a stable condition.
Prime Minister Tony Blair who recently visited British troops at Camp Bastion led tributes to Marine Wigley in the House of Commons today.
Marine Wigley’s Commanding Officer, Lieutenant Colonel Duncan Dewar RM, said:
Jonathan was an outstanding young Royal Marine whose tenacity, determination and professionalism shone through in everything he did. Extremely popular, with a lively sense of humour, he was very highly thought of by everyone who worked with him.British Forces are deployed in Afghanistan in support of a UN-authorised, NATO led mission to help the Afghans rebuild their country and keep the terrorists out.
He was an excellent Marine who died doing the job he loved and will be missed by all his friends in 45 Commando. Our thoughts are very much with his family at this difficult time.
I have always had the utmost respect for Royal Marines as among the most professional of British soldiers. Jonathan's death is a real loss, not only to his relatives and friends in Grantham, but also to the whole Royal Marine family.