A strike at a Chinese plant of Toyota Motor Corp. affiliate Denso Corp. in south China has halted production since Monday, a Denso spokesman said.

Seiichiro Kunitomi said Tuesday the strike at Denso (Guangzhou Nansha) Co. stemmed from "workers' calls for better wages and treatment," but he didn't elaborate as management was negotiating with employees as he spoke.

The strike-hit factory mainly supplies fuel-injection parts to Toyota, Honda Motor Co. and other auto assemblers in China.

The Denso-owned plant has 1,100 employees, Goro Kanemasu, another Denso spokesman, said.