Hackers aligned with Anonymous claim to be carrying out numerous cyberattacks against North Korean websites, urging North Korean citizens to rise up against their "oppressive" government.

Hackers also claim to have seized more than 15,000 passwords belonging to accounts on Uriminzokkiri.com, an outward-facing North Korean website hosted on China-based servers.

The hackers, calling themselves Anonymous Korea, say they have launched numerous distributed denial of service (DDoS) attacks against North Korean websites — including www.airkoryo.com.kp, www.naenara.com.kp, www.korea-dpr.com and www.friend.com.kp — since Saturday.