Lockdown in Cardiff: City turned into high security 'prison' with 10 mile 'ring of steel' ahead of Nato conference

‘Cardiff city centre has been turned into a high security ‘prison’ with 10 miles of fencing – which is being dubbed the ‘ring of steel’ – ahead of the Nato conference next week.

Police have erected the nine feet high security fencing around Celtic Manor resort in Newport where Barack Obama, David Cameron and other world leaders will meet in Wales on September 4 and 5, as well as the city centre.

It comes as former foreign office minister, Kim Howells, issued fears that home grown Islamic State terrorists could be planning to attack the 2014 summit.

He said: ‘It will be a target, there is no question about it, that is why the security measures taken are so intense.

‘With a Nato summit there is going to be a raised expectation or raised awareness that there might be an attack – that is why all the special measures have been taken.’ ‘