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Euro crisis threatens French banks

15 September 2011 Last updated at 06:37 BST

Continuing concern over a possible Greek default is putting pressure on French banks, which are the most exposed to Greek debt.

Credit rating agency Moody's downgraded two French banks - Credit Agricole and Societe Generale - because of their exposure, with the possibility that a third - BNP Paribas - could also be downgraded.

Christian Fraser reports from Paris.