Iran has extended the closure of its airspace as it is expecting Israeli retaliation following its attack on the enemy country on Tuesday evening. All flights have been cancelled until 5 am (0130 GMT) on Thursday to maintain aviation security, state news agency ISNA reported, citing a spokesman for the aviation authority. Iran initially closed the airspace over Tehran cancelling all flights up until Wednesday morning after it launched a barrage of missiles at Israel on Tuesday evening. Iran’s Islamic Revolutionary Guard Corps (IRGC) say the attack was in retaliation for the killings of Hamas l…