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.
The Queen has been targeted by Twitter trolls after sending her first royal tweet.
The official @BritishMonarchy account she used saw its followers grow by tens of thousands, but was immediately attacked by trolls sending abusive messages.
A Buckingham Palace spokesman said: "We were fully cognisant of the nature of Twitter, where anyone anywhere can express their opinion, but we were delighted that so many people - in their tens of thousands - responded positively.
"We saw some tweets with profanity but that is just the nature of the format."
Scotland Yard said it had not received any complaints and was not investigating the matter.