A new wave of apparent distributed denial-of-service (DDoS) attacks pummeled web servers in North Korea, an NK Pro investigation showed Wednesday, as experts disagreed on who may be behind the recent campaign.

While email servers and other websites were only lightly affected this time, the attacks on Tuesday appeared to focus on Pyongyang’s Ministry of Foreign Affairs. Server loads seemed to build up through the morning, peaking around 3 p.m. KST and making the ministry’s website largely inaccessible through the evening, logs show. 

The latest attacks came two days after a U.S