Pro-Russian group suspected of cyberattack on Japanese government websites

The Japanese government says a pro-Russian hacker group is suspected of having launched what is known as a DDoS attack on the government network.

The Digital Agency says the government's multiple systems are believed to have been attacked from overseas on Tuesday afternoon. Massive amounts of data are sent in a DDoS attack to make websites inaccessible.

Access was disrupted on Tuesday to some websites, including the "e-Gov" portal site that provides administrative information.

A pro-Russian hacker group named Killnet posted a message on social media on Tuesday to claim credit for the attack.

The group has also used the DDoS method in its cyberattacks in other countries.