Boris Johnson: 'No impunity' for those responsible for Syria chemical attack

Boris Johnson has written a joint article with the French foreign secretary warning that those responsible for the chemical attack in Syria will be held to account.The two foreign secretaries insist there will be "no impunity" for those involved.In the article published in Le Monde and the Guardian newspapers, the Foreign Secretary and his French counterpart Jean-Marc Ayrault say: "It is our responsibility to ensure that those who conducted such chemical attacks are held accountable.