RIYADH Saudi Arabia's Crown Prince Abdullah will visit Yemen next week on the first trip by a senior Saudi official since the two nations ended a lengthy border dispute last June, diplomats said on Saturday. The Saudi diplomats told Reuters that Abdullah was due to make a "cordial" visit to Yemen within the next few days. Abdullah last traveled to Yemen almost a year ago to attend the country's reunification celebrations. In June 2000, Yemen and Saudi Arabia ended a border dispute that had often sparked armed clashes since the 1930s.