The president of Armenia has visited Turkey in a fresh step towards reconciliation between the two countries after nearly a century of hostility.
Serge Sarkisian, making the first visit to Turkey by an Armenian leader, joined his Turkish counterpart Abdullah Gul at a World Cup qualifying football match between the two countries.
Turkish fans booed Armenia's anthem at the start of the game - which Turkey won 2-0 - in the western city of Bursa.
Last week, Turkey and Armenia signed a historic accord normalising relations.
Relations between the two countries have been overshadowed by bitterness since the 1915 mass killing of Armenians by Ottoman forces during World War I.