Speaking Tuesday at the opening of a conference of Iraq's neighbors in Turkey, Nayef said, "Acts of violence and terrorism have increased alarmingly in Iraq making our mission more difficult and necessitating greater cooperation."
"We are all requested to deploy extra efforts in order to contribute positively in helping Iraq surmount its problems which are reflecting on all of us," the official Saudi News Agency, SPA, quoted Nayef as saying.
He called for closer cooperation between Iraq's neighbors in combating terrorism, including exchanging information, controlling borders and drying up the resources of financing terrorism.
Iraq's neighbors include in addition to Saudi Arabia, Jordan, Syria, Iran, Turkey and Kuwait.
Dennis Rodman pledges to end trips to North Korea
Senate Democrats to pull all-nighter on climate change