Related reports in Korean, incl. videos and lots of pics, you'll get here, here, here and here.

 

PS. Last Monday(5.26) Korea Herald reported that "a growing number of people are participating in protests against the government’s failures during the Sewol ferry disaster"... Reality check: [5.17] around 50,000 people joined the candlelight vigil in downtown Seoul. [5.24] 30,000 people held a candlelight vigil, and last Saturday 20,000 people participated...