McDonald's Co. (Japan) will only offer french fries in small sizes as potato imports from North America have been delayed due to flooding near a Vancouver port and a worldwide logistics disruption caused by the COVID-19 pandemic.

The sale of medium- and large-size fries will be stopped from Friday to Dec. 30 as the potato supply falls, McDonald's said in a statement on Tuesday. The hamburger chain continues to sell small-size offerings as it tries to make sure customers can enjoy the popular item despite the shortage.

Supplied photo shows McDonald's small-size french fries. (Kyodo)

McDonald's said it is expediting the procurement of potatoes and plans to put medium- and large-size fries back on the menu by 10:30 a.m. on Dec. 31.

The suspension will take place at about 2,900 stores nationwide. The supply issue will not affect its hash brown offerings, the company said.