BBC World News
- Students vow to step up HK protests Student demonstrators in Hong Kong vow to step up pro-democracy protests and occupy government buildings if leader CY Leung does not quit.
- Deadly attack on Donetsk school A shell blast kills four people at a school in the rebel-held Ukrainian city of Donetsk on the first day of classes, delayed because of the conflict.
- Airlines told to replace cockpit kit The US air safety regulator has ordered airlines to replace cockpit displays in more than 1,300 planes because of fears that wi-fi signals can make them go blank.
- Iraq PM opposes Arab strikes in Iraq Iraqi Prime Minister Haider al-Abadi tells the BBC he "totally" opposes Arab nations joining air strikes against Islamic State in his country.
- Karadzic takes blame for Serb crimes Radovan Karadzic sums up his defence, saying he takes "moral responsibility" for crimes committed by Bosnian Serbs but denying he ordered killings.
- Iran filmmakers back nuclear deal Six prominent Iranian filmmakers launch a campaign urging world powers to agree a permanent solution to the dispute over Iran's nuclear programme.