US Secretary of State Hillary Clinton has arrived in the Gulf to rally Arab support for tougher sanctions against Iran over its nuclear programme. In Qatar, Mrs Clinton will address the annual US-Islamic World Forum and will hold talks with Prime Minister Sheikh Hamad bin Jasim al-Thani. She will also meet Turkish premier Recep Tayyip Erdogan, whose country opposes the sanctions. The three-day tour will include Mrs. Clinton's first ever trip to Saudi Arabia where she will meet King Abdullah, as well as foreign minister Prince Saud al-Faisal. Efforts to revive the Arab-Israeli peace process are also expected to be on the agenda during Mrs Clinton's tour. A state department official travelling with Mrs Clinton said the US expected Saudi Arabia, which has growing trade relations with China, to persuade Beijing to abandon opposition to tougher sanctions against Iran.