Saudi Arabia is close to signing a two-billion-dollar (1.4-billion-euro) deal to buy Russian arms, a Russian defence industry source was quoted as saying on Saturday. "Work is nearly complete on a set of contracts on the delivery of Russian arms and military technology to Saudi Arabia, with a total value of around two billion dollars," the source told a local news agency. "For many of these contracts, all the technical and financial details have practically been agreed, for others work is still ongoing," he added.