LONDON (Reuters) - British police said they have evacuated and are searching a residential address in Surrey, southern England, after arresting an 18-year-old man in connection with a London train bombing that injured 30 on Friday. The police said in a statement that residents in the buildings surrounding the address were also being evacuated as a precautionary measure.  Cordons are being put in place at a 100 meter radius to facilitate the Metropolitan Police Service s operation, which is being supported by colleagues from Surrey Police,  they said. 