China has signed an agreement with Saudi Arabia to build a new railway system linking the main sites of the annual Muslim pilgrimage, the Hajj. The new railway will connect the city of Mecca with the pilgrim destinations of Mina, Arafat and Muzdalifah. Saudi Arabia also plans to build a high-speed rail link to take pilgrims from Mecca to Medina, Islam's two holiest cities, in 30 minutes. The journey time by road takes anywhere between four and five hours. The new network in Saudi Arabia is expected to be ready within three years, officials said. The contract, worth almost $1.8bn (£1.24bn), was awarded to the China Railway Company and a French firm.