AMMAN, Nov 3 (Reuters) - U.S. Secretary of State Antony Blinken will hear demands for an immediate ceasefire in Gaza when he meets Middle East foreign ministers in Jordan on Saturday, Jordan's foreign ministry said. Saudi, Qatari, Emirati, Egyptian and Jordanian foreign ministers as well as Palestinian representatives will stress the "Arab stance calling for an immediate ceasefire, delivering humanitarian aid and ways of ending the dangerous deterioration that threatens the security of the region", the ministry said in a statement on Friday.