TOKYO (Reuters) – Toyota Motor said on Tuesday it had suspended operations at all of its assembly plants in Japan over a production system malfunction, prompting a complete shutdown of domestic production at the biggest car seller. in the world.

The failure prevents Toyota from ordering components and is the subject of an investigation, said a spokesman for the Japanese group, who wanted to rule out the hypothesis of a cyberattack.

The factories located in Japan represent a third of the total production of the Japanese manufacturer, according to calculations made by Reuters.

The average daily production of factories located in Japan is 13,500 vehicles in the first half of the year, according to calculations by Reuters.

If the cause of the incident remains unknown, Japanese companies have been on alert in recent days after the multiplication of threatening phone calls.

According to the Japanese government, these calls could come from China and would be linked to the discharge of contaminated water from the Fukushima nuclear power plant into the sea.

(Reporting by Satoshi Sugiyama, MiyoungKim and Kevin Krolicki; Zhifan Liu, editing by Tangi Salaün)

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