New York Police have given the all clear after investigating a suspicious vehicle spotted in lower Manhattan near Union Square. Two gas canisters were seen in the back of an Oldsmobile Cutlass near 14th Street and Irving Place intersection, close to the busy Union Square subway station. A remotely-controlled robot moved in on the vehicle and popped its windows open, producing a large boom. Police said they were leaving the scene after the car's owner, who owns a landscaping business that provides lawn mowing and other services, explained why he had the gas canisters in the vehicle.