Johann Lamont has resigned as leader of the Scottish Labour Party accusing the Westminster leadership of treating the party in Scotland as a "branch office".
US Central Command says America and its allies conducted 22 air strikes against Islamic State in Iraq on Friday and Saturday.
The outgoing chair of the Scottish Labour Party said "it has been an immense privilege to lead" the part during the "momentous time in Scottish politics."
In her resignation letter, Johann Lamont said she believed Labour Party is the "only chance for better Scotland."
"Despite the serious challenges we face, I strongly believe that the Labour Party is not only our best chance of achieving a better, fairer Scotland, it's our only chance," she said.
Labour former first minister Lord McConnell told BBC Radio Scotland's Good Morning Scotland programme he was "very, very angry" and said UK party leader Ed Miliband had questions to answer.
Blustery showers will continue to pile into northern and western Scotland as well as Northern Ireland with the risk of gales for exposed coastal areas and strong gusts near any showers.
Elsewhere, it will be mostly dry with some bright spells at times.
However, there will be plenty of cloud about, especially in western parts of England and Wales, where it will be thick enough to give a few spots of rain at times. Temperatures will reach 16 Celsius in London.