Aerial footage of the devastation wrought in Tasmania after bushfires began last month.
US Defence Secretary Ash Carter tells the BBC's Jonathan Beale it remains to be seen whether Russia implements the agreement on Syria.
China's foreign minister says a planned US missile defence system to protect South Korea from the North could also be used to target China.
The BBC's Richard Galpin reports from the Greece-Macedonia border, where a second razor wire fence is being constructed to stop illegal migrants in their tracks.
The Pope will hold an historic meeting with Patriarch Kirill of the Russian Orthodox church on Friday.
Surprising things about the man synonymous with genius
The blind boy who learned to find his way around using echoes
A five-storey building collapses in the centre of the Turkish city of Istanbul, but it is unclear if there are any casualties.
The European Union gives Greece three months to fix border controls in a move that could allow other Schengen states to maintain internal controls.