US President Barack Obama tells a UN climate change meeting in New York that the problem is growing faster than the world's efforts to address it.

The Vatican places its former ambassador to the Dominican Republic, Jozef Wesolowski, under house arrest on charges of sexually abusing children.

Restrictions on the number of books prisoners in England and Wales can have in their cells is inhibiting their ability to learn, a charity warns.

The fight against Islamic State (IS) militants is one "you cannot opt out of", David Cameron says during a visit to the US.

India successfully puts its first satellite in orbit around Mars, after Mangalyaan's 10-month mission from Earth.

Nicola Sturgeon will launch her bid to replace Alex Salmond as SNP leader and first minister of Scotland, making clear she still backs independence.

The fight against Islamic State may take years, a US military spokesman tells the BBC, as more than 50 countries are said to have joined a US-led coalition.

Labour is to give more details of its plan for the NHS, after Ed Miliband's party conference pledge to "save and transform" it.