The highest-ranking Israeli official to visit the Soviet Union in at least 21 years arrived in Moscow on a trip that apparently came as a surprise to top Israeli leaders, officials said Monday. Director General Avraham Tamir arrived in Moscow Sunday from the Hague, where he apparently received a tourist visa to enter the Soviet Union, not an official one, the Jerusalem Post reported. A Foreign Ministry official said the Moscow trip was a "technical visit to check the procedures and working conditions of the consular delegation," which arrived in the Soviet Union earlier this year.