Two Iranian warships leave Port Sudan on Wednesday after a three day stay.<br/> <br />The first ever visit by Iranian naval vessels comes less than a week after Khartoum accused Israel of attacking an arms factory in the capital.<br/> <br />Four people were killed after a blaze broke out which Sudanese authorities say was caused by an Israeli air strike.<br/> <br />Israel has not commented on the fire in the Sudanese capital.<br/> <br />Speaking to the media at Port Sudan, the Iranian military attache to Sudan repeated the accusations, harshly speaking out against Israel.<br/> <br />A Sudan military spokesman, however, said the Iranian naval visit was not intended to show aggression towards any particular nation.<br/> <br />(SOUNDBITE) (Arabic) SUDANESE ARMED FORCES SPOKESPERSON, COLONEL AL-SAWARMI KHALID SAAD, SAYING:<br/> <br />"It is not targeted at anyone and is not intended as a hostile act, but it is an action aimed at improving political and diplomatic actions, and the joint security for both Sudan and the Republic of Iran maritime forces."<br/> <br />Sudan, with close ties to Iran, has long been seen by Israel as a conduit for weapons smuggled to the Hamas-ruled Gaza Strip, via the Egyptian Sinai desert.