Security forces shoot in air to disperse crowds as demonstrators wave Palestinian flags and climb fence; officials says they did not reach offices

White House official declines to say whether Baghdad was invited to conference; PLO Executive Committee member Ahmad Majdalani praises Iraqi decision not to participate in event

Rocket fired at Iraqi capital's heavily fortified district, which houses US Embassy, days after State Department ordered evacuation of all non-essential staff

Shiite militia leader accuses Washington of 'trying to create an uproar in Iraq and the regions under any pretext'