Police in London have arrested a 31-year-old man in connection with allegations of unauthorised trading which has cost Swiss banking group UBS an estimated 2bn dollar (£1.3bn).
The Brazilian cities of Sao Paulo (19) and Rio do Janeiro (26), together with the Venezuelan capital Caracas (47) and Bogotá (57) Colombia, figure among the most expensive cities in Latin America, according to a bi-annual rating from the Swiss bank, UBS.
Eight banks are facing a US investigation into the rating of their mortgage products, the BBC understands. New York Attorney General Andrew Cuomo is looking at whether the relationship between the banks and credit rating agencies was manipulated to gain better ratings for risky securities.