Mazda Motor Corp.'s deliveries in China tumbled to their lowest level in 19 months amid anti-Japan protests, fueling concern that larger automakers such as Toyota Motor Corp. will follow suit.

Mazda saw deliveries in China drop 35 percent to 13,258 vehicles last month, the automaker said on its website Thursday.

That's the fewest deliveries since February 2011, meaning the company couldn't even match its sales during the aftermath of last year's quake and tsunami in Japan and floods in Thailand.