David Cameron will focus on his fight to keep Scotland in the UK as he opens the Scottish Conservative party conference later today.
He is due in Edinburgh, where he will draw on recent interventions from major businesses, such as BP and Shell, in the referendum debate.
Mr Cameron will attempt to tackle accusations of "scaremongering" over the country's future, saying he wants to "take that myth apart".
More top news
Billionaire Microsoft co-founder Paul Allen has claimed discovery of the Japanese battleship Musashi that was sunk by the US Navy in 1945.
Friday will be mostly dry with sunny spells for much of the UK. Temperatures will be mild across the country.
Some famous Liberal Democrat names will be fighting for their political lives in the election, now just over two months away.