RIYADH, March 18 (Xinhua) -- A four-day camel race lowers its curtain in Alula, Saudi Arabia, on Friday.

One camel won first prize in the "Heil" race with an award worth 7.5 million Saudi riyals (around 2 million U.S. dollars).

Organized by the Royal Commission for Alula (RCU) in collaboration with the Saudi Camel Racing Federation (SCRF), the event aimed at developing camel sport, which dated back to the 7th century.