Nissan is considering plans to shut two car assembly plants in Japan and overseas factories, including in Mexico, sources said on Saturday, as part of a cost-cutting plan the company flagged earlier this week.

The automaker is mulling closing Japan's Oppama plant, where Nissan started production in 1961, and the Shonan plant operated by Nissan Shatai, in which Nissan is a 50% stakeholder, the sources said, which would leave it with just three vehicle assembly plants in Japan.