I returned from Europe yesterday and immediately went to the site of the sinkhole that had opened up at the entrance of the Seokchon Underpass. As well as applying safety measures, I will conduct a thorough investigation with experts on the two sites where sinkholes have formed and look for ways to prevent such incidents from happening again. We will fully prepare for the formation of any other such sinkholes and monitor not only the areas around Jamsil but all over Seoul for sinkholes. Concerning this issue, it is time for us to come up with comprehensive measures regarding subway construction, construction related to the replacement of worn out water and sewage pipes, and underground water. We will dedicate our hearts and souls to creating a safe city.