Toyota Motor Corp, the world's biggest carmaker, reported a monthly sales increase in China for the first time since January as the carmaker ramped up production in the country.

Deliveries in the world's biggest vehicle market climbed 0.4 percent to 79,000 units last month from 78,700 a year earlier, the Japan-based carmaker said on Monday.

For the January-to-May period, sales were 8.6 percent short of last year's level.

The gain in May deliveries follows Japanese carmakers' production increase in China a month earlier, signaling a consumer backlash is fading following a territorial dispute between Asia's two largest economies in 2012.