The second televised debate has started at Kelvingrove Art Gallery and Museum in Glasgow in front of an audience of 200 people.
First, both the leaders have a chance to make an opening statement.
With just a few weeks to go until the Scottish independence referendum takes place, here are some key facts about the vote.
An investigation has been launched after listings appeared on eBay offering to sell votes in the upcoming Scottish independence referendum.
Bounce for leaving the union following second debate this week, but only 43% expected to vote yes in referendum on September 18