Japan’s stomach-churning “sushi terrorism” is running rampant.

Police busted two men in Osaka this week for contaminating a communal bowl of pickled ginger at a fast-food restaurant as part of a viral prank.

Ryu Shimazu, 35, and Toshihide Oka, 34, filmed themselves dipping their chopsticks into the communal bowl and chowing down at Yoshinoya, a popular beef bowl chain in the port city.

A restaurant spokesperson said customers may only use serving utensils to pick out the ginger — not dive in with chopsticks they’d already had in their mouths.

“The video made our regular customers feel uncomfortable and uneasy,” Yoshinoya said in a statement, adding the chain had to close the restaurant to clean its containers.

“We greatly regret that this has become a major news story that calls into question the safety and security of the entire food service industry. We sincerely hope that this kind of thing will not happen again in the future.”

According to police, Oka had egged on Shimazu to do something funny at the eatery — which prompted Shimazu to feast on the ginger as his friend filmed it.

They told police they just “wanted to make everyone laugh” and thought it was “funny.”

The prank got plenty of online chuckles, but the consequences are no laughing matter.

The pair now face obstruction of business and property damage charges that carry fines up to $6,080, and up to three years in prison.

The incident is just the latest in “sushi terrorism” pranks plaguing Japan’s fast food industry, particularly its conveyor belt sushi system.

Last month, cops arrested three people for allegedly licking the top of a communal soy sauce container and using their hands to grab sushi off a conveyor belt at the Kurta Sushi restaurant in central Japan.

Similar incidents spread on social media in recent years have sparked concerns the country’s conveyor belt sushi system and communal bowl restaurants may be outdated and in need of a major overhaul.