Toyota Motor Corp. said Friday it will further delay the restart of its China operations because of the spreading coronavirus outbreak that began in Wuhan.

The closures at Toyota's four auto plants in Tianjin, Chengdu, Changchun and Guangzhou are expected to be extended until sometime after Feb. 17. The decision reflects local logistics and parts-procurement conditions, a Toyota spokeswoman said.

The auto giant had initially planned to restart the plants early this month after the Lunar New Year holiday, but decided in late January to keep the suspension in place until at least Monday in light of the virus outbreak.