China's leading new-energy vehicle (NEV) manufacturer BYD saw surging NEV sales growth in September, company data showed.

Last month, the sales of NEVs, including purely electric vehicles and plug-in hybrid electric vehicles, surged 276.4 percent year on year to 70,022 units, the Shenzhen-based company said in a statement on its website.

In September, the company's sales of passenger vehicles rose 93.2 percent year on year to 79,037 units, it said.