Production of cars, trucks and buses in Japan grew 6.4% year on year in October to 912,138 units, rising for the fourth straight month, the Japan Automobile Manufacturers' Association said on Tuesday, according to a Dow Jones report.

According to Dow Jones, the association said output increased in every vehicle category, while domestic demand and exports in the month were stronger than a year ago.

Domestic vehicle demand totalled 443,082 units, up 1.3% from a year earlier while the association estimated vehicle exports in the month rose 5% and will release complete export figures later, Dow Jones said.

Solid small car sales in Japan and brisk exports continued to support domestic production, while truck output showed only a marginal increase.

Dow Jones said Japanese passenger car output in October climbed 7.4% to 765,872 units, while truck production edged up 0.6% to 140,036 units. Bus production rose 22.6% to 6,230 units.