World

Vladimir Putin's mounting problems in Ukraine make Russia's use of a tactical nuclear weapon more likely, a senior US expert has told Sky News.

Success on the battlefield translates into a very different language for the residents of Lyman - and has come at a significant cost to the civilians.

A US aircraft carrier is to be redeployed to South Korea's east coast, following Tuesday's ballistic missile test by Pyongyang.

Invasive blackberry bushes and blood-sucking vampire flies are threatening the precious ecosystems of the Galapagos Islands - with some animals already in danger of extinction.

Police wrongly used tear gas inside the soccer stadium where at least 125 people died in a stampede in Indonesia over the weekend, an official has revealed.

Nuclear-armed North Korea has fired a ballistic missile over Japan for the first time in five years.

Elon Musk is planning to buy Twitter for his original offer price - and he's hinted at his plans for social media.

Derek Redmond's father - who memorably helped his distraught son over the finish line at the 1992 Olympics - has died aged 81.

A government worker says she "said no at least half a dozen times" as a colleague allegedly raped her inside Australia's Parliament House.

The European Parliament has voted to introduce an EU standard charging port for mobile phones.