Iraq has “solid information and intelligence” about al-Qaida militants infiltrating Syria from the country to carry out attacks.
Foreign minister Hoshyar Zebari told reporters that authorities are worried about a spillover of violence from Syria to the rest of the Mideast.
He said Baghdad has for years warned Damascus about al Qaida traffic between Iraq and Syria.
Mr Zebari says a recent increase in violence in Iraq also could hurt foreign investment as the country tries to pull out of years of sectarian violence.
He blames a months-long political crisis in Iraq for the surge of deadly attacks over the last month.