The full statement from the Welsh FA confirming the death of Gary Speed follows:
The Football Association of Wales are sad to announce the death of the national team manager Gary Speed.
We extend our sympathies and condolences to the family.
We ask that everyone - especially the media - respects the family's privacy at this very sad time.
All at the FAW admired Gary's passion for the job and task of taking the team back up the European and World rankings. With the qualifying dates for the next World Cup group agreed only last week in Brussels, there was much to look-forward to over the next few years.
That this tragedy should have overtaken someone so young and talented is a huge loss not only for his family and friends but a nation as a whole.
FAW Chief Executive, Jonathan Ford said: "I, and all of the football family of Wales, am devastated by the news of Gary's passing. My thoughts and prayers are with his wife and family at this difficult time."
FAW President, Phil Pritchard added: "I am completely shocked by this terrible news and my thoughts are with his family. We will do whatever we can as an association to help them in this difficult time."
All our thoughts are with his family and this sad time.