Canada shooting: Police tell public to 'avoid area' after at least four killed in Fredericton, before suspect detained

Four people including two police officers have been shot dead in the Canadian city of Fredericton. One suspect has been arrested over the gun attack in New Brunswick province following a manhunt during which residents were told to remain in their homes and lock their doors. The country’s prime minister, Justin Trudeau, paid tribute to the victims of Friday morning’s shooting.