Amid a spike in copyright infringement, the government on Friday compiled a report calling for an "emergency measure" that would block access to websites that pirate anime and manga.

The Cabinet Office's Intellectual Property Strategy Headquarters plans to encourage internet service providers to restrict access to such "malicious" websites "on a voluntary basis" in order to protect the nation's famed manga and anime industries from free-riders.

The report named three major piracy websites — Mangamura, Anitube and Miomio — as targets of the blocking measure.