According to the Seoul Southern District Prosecutor's Office, Kwon was not assisting with the inquiry. He had informed them (via his attorney) last month that he had no plan to come for questioning, according to official comments reported by the local media outlet Yonhap. The prosecutors claim they have "circumstantial proof" that Kwon is seeking to flee and have asked Seoul's foreign ministry to withdraw his passport.
A red notice from Interpol, which alerts law enforcement worldwide, has the power to stop people from getting visas, impose restrictions on their international travel, and "provisionally arrest a person pending extradition, surrender, or comparable legal action." Kwon stated over the weekend that he wasn't hiding from any government organization that had "expressed interest in contact." We are fully cooperating, and we have nothing to hide, he tweeted.
Kwon claimed he hadn't spoken to South Korean officials in an interview with Coinage last month. Investors in South Korea and the U.S. filed lawsuits against Kwon for illegal fundraising and fraud after the two coins—Luna and TerraUSD—crashed earlier this year, wiping out approximately $40 billion of hundreds of thousands of investors.