Description:French police have cordoned off a residential area of Toulouse, during a raid on a house to arrest suspects believed to have shot dead three Jewish children and a rabbi outside a school in the city on Monday (March 19th). Two officers have been wounded in a shootout with those inside the building. A police source said the raid began at 0200GMT. French channel BFM TV said the suspects were linked to an Islamist group, which it named as Forsane Alizza.(0:43)