News Snapshot:
Donald Trump has said there is a "good chance" of peace between Russia and Ukraine – but added the US has a red line in upcoming talks. After a two-hour phone call with Vladimir Putin, the US president announced on Monday that Russia-Ukraine discussions will begin "immediately". It is unclear how these will differ from negotiations that already started in Turkey last Friday. Speaking to reporters in the Oval Office later on Monday, Mr Trump said he does have a red line on when he'll stop pushing Moscow and Kyiv for peace - but would not say what it is....