UN Secretary General's special envoy for Cyprus Alexander Downer has begun his official visit to Ankara, Turkish Dunyabulteni news agency said. Today, Downer will meet in Ankara with Turkish Foreign Minister Ali Babacan and tomorrow in Athens with Greek Foreign Minister Dora Bakoyannis. UN envoy is expected to take part in negotiations on Cyprus between the leaders of the Turkish and Greek communities of the island, Mehmet Ali Talat and Dimitris Christofias, Dec. 22.