<span style="color: #222222;">Iran has closed its air and land borders with Iraq as fighting between rival Iraqi forces raged for a second day today. Iranian state television cited unrest and curfew in Iraqi cities for the reason for the border closures. It also urged Iranians not to go to Iraq.<br />''<br />''The decision came as millions of Iranians were preparing to visit Iraq for annual pilgrimage to Shia sites. Kuwait also urged its citizens to leave the neighbouring country. </span><br />