The man arrested this morning is the sixth suspect to be arrested - and the seventh person to be questioned - in connection with the Yewtree operation which involves a team of 30 officers and has already cost around £2 million.
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Ten people have died on the mountain so far this climbing season - four more than mountaineering officials expect in a typical year.
“We can use peace”, the US President told the pontiff in their first face-to-face meeting on Wednesday.
A man with a knife has been arrested near Buckingham Palace in an incident Scotland Yard said was not believed to be terror related.