A decade after the first Prius went on sale, Toyota's global sales of hybrid vehicles have hit a landmark 1 million, underlining the Japanese automaker's lead in "green" technology that has changed the face of the auto industry.

Toyota Motor Corp.'s cumulative sales of gas-and-electric-powered vehicles totaled 1.047 million as of the end of May. Of those, nearly 345,000 hybrids were sold in Japan, while 702,000 were sold abroad, the company said Thursday.

Sales of Toyota hybrids have climbed from just 18,000 in 1998 to 312,500 last year, the company said.