Junk

Junk is a 2000 Japanese horror film written and directed by Atsushi Muroga. A blend of the yakuza and zombie film genres, Junk stars Kaori Shimamura as Saki, a member of a group of jewel thieves. While attempting to deliver stolen goods from a heist to another criminal gang, the thieves must fight to survive against a horde of zombies resulting from secret experiments by the United States military.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.