Hundreds of lorries wait in a bottleneck triggered by Russia's scrapping of a grain shipping deal to unload grain at small river ports in southern Ukraine. Previously, Ukraine exported via the Black Sea on large ships but a wartime deal on safe passage broke down after Moscow exited July 17. Russia then bombed Black Sea port infrastructure, including the UNESCO-listed city centre of Odesa. Huge volumes of grain are now heading to small river ports in Odesa region adjacent to Romania. IMAGES AND SOUNDBITES