Two divers recognized a suspicious shape at Eilat's coral beach overnight Friday and alerted police, suspecting it was one of the Russian-made rockets that were launched in the direction of the Red Sea on Thursday. Two other rockets hit Aqaba, damaging a refrigerated warehouse.Security forces arrived at the scene, closed off the beach and began to search for the object, which is suspected to be a rocket dud. On Thursday morning, two Grad rockets hit Jordan's Red Sea port, not far from Eilat. Following the incident, Jordanian Information Minister Nabil al-Sharif said Jordanian authorities were continuing to look into the explosion in order to determine where the missile was launched from. Sharif denied that the rockets had been launched from Jordanian territory.Israeli officials said they, too, were looking into the source of the rocket and by Thursday night had yet to rule out the possibility that it was fired from the Sinai Peninsula. The incident occurred as jitters were high a week after Israel issued an "urgent" warning to its citizens to leave Egypt's nearby Sinai Peninsula immediately, citing "concrete evidence of an expected terrorist attempt to kidnap Israelis in Sinai." Yaakov Katz contributed to this report.