Muscat: His Majesty Sultan Qaboos bin Said has sent a cable of condolences to the President of the State of Palestine Mahmud Abbas, the president of the Executive Committee of Palestine Liberation Organisation on the death of his brother Omer Abbas. In his cable, His Majesty the Sultan has expressed his sincere condolences to him and the members of his family, praying to Allah the Almighty to rest the deceased soul in peace and grant his family patience.