Ford may have to slow or stop production at some of its Asia-Pacific operations later this month due to a shortage of parts from Japan.

The company has already been forced to halt operations at some facilities in the US and Europe due to supply chain disruption, which has highlighted the company’s global dependence on supplies from Japan, particularly of electronic parts.

In a regulatory filing in the US, Ford said it did not yet know how many of its assembly plants in the Asia-Pacific region would be affected nor for how long. So far, high inventory levels in the region have kept disruption to a minimum.

But Ford expects production to be disrupted from the final week of April at least into May, as current inventories are run down. The company said it was working on securing alterative supplies of parts.

The company has 13 assembly plants in the Asia-Pacific region, including in China, India, Australia, Thailand, Taiwan, Vietnam and the Philippines.