Iraq strikes IS targets in Syria as forces enter western Mosul

Iraq's air force has struck Islamic State targets inside Syria for the first time as Iraqi troops on the ground pushed into western Mosul.

Iraq's Prime Minister, Haider al-Abadi, announced the air strikes, saying the air force hit the towns of Boukamal and Husseibah across the border. He said they came in response to recent bombings in Baghdad claimed by IS and linked to the militants' operations in Syria.