Japanese automaker Mazda is planning to increase production capacity of its SKYACTIV-G gasoline engines and SKYACTIV-D diesel units by 25% at its Hiroshima Plant in Japan.

As part of plans, the SKYACTIV engine production capacity at the plant would be increased to one million units annually by the end of 2014, from the current 800,000 per year.

To accommodate the rise in production, the Japanese carmaker will deploy a new engine machining line and upgrade an existing assembly line at the plant to enable producing both inline four-cylinder engines and the SKYACTIV engines.

Mazda Motor Production Engineering Division managing executive officer and general manager Kiyotaka Shobuda said: "Sales of SKYACTIV vehicles are increasing in markets around the globe and the decision to increase production capacity was made to furtherstrengthen our supply system."

The Japanese automaker's latest move forms part of its efforts to increase its worldwide vehicle sales to 1.7 million units by March 2016, with 80% of its sales expected from SKYACTIV vehicles.

In July 2013, Mazda revealed plans to increase the capacity of SKYACTIV transmissions at its Hofu Plant in Yamaguchi, to 1.11 million units by July 2014 from the current capacity of 750,000 units produced annually.