The US President has not handed down any orders for US military airstrikes against ISIS militants threatening Baghdad, or any other military intervention in Iraq, senior US defence officials have told NBC News.
The officials could not say whether President Obama had also made a decision regarding possible US military action in Iraq.
Some 100 American soldiers and Marines arrived in Baghdad overnight to provide additional security for the US embassy and assist in any evacuations if necessary.
The Foreign Secretary has been clear on the threat of Isis, but he has ruled out the prospect of any UK military involvement in the crisis.
Iraq’s foreign minister, Hoshyar Zebari, is a natural diplomat. Polite, immaculately dressed, and blessed with a great memory.
Isis has paraded military equipment in Mosul it captured from when the Iraqi army fled in what some see as a "nightmare scenario."