UN Secretary-General Ban Ki-moon has been urging the Iraqi Prime Minister Nouri al-Maliki to reach out for inclusive dialogue to restore peace and stability in the country.
He also said the failure to pay attention to people's rights creates a "breeding ground for extremism and terrorism."
The latest statement comes as the Sunni militant group Isis attacked a prison in Baquba, 40 miles from the Iraqi capital Baghdad, releasing its prisoners.
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."