Park Jong-joon said that citizens affected by the violence should continue to demand the arrest of the suspended president.
The head of South Korea's presidential security agency has resigned after warning officials to avoid “bloodshed” in arresting President Yoon Suk-yeol, who has been accused of impeachment over his temporary military declaration.
Park Jong-joon, head of the Presidential Security Service, stepped down on Friday amid an investigation into allegations of obstruction of public service.
President Choi Sang-mok's office confirmed that it had accepted Park's resignation after he appeared at the police earlier in the day.
Speaking during the interview, Park said that many citizens are worried that there may be violence if investigators try to issue another warrant for Yoon's arrest.
“I came here today hoping that there will be no conflict or bloodshed, and I hope that this will not happen,” Park told reporters at the Joint Investigation Center in Seoul.
The Chief Corruption Investigation Office (CIO) and police are preparing to try again to arrest Yoon after his security detail last week prevented investigators from issuing a warrant to his office.
The anti-corruption agency dropped its arrest warrant for Yoon following a long-running dispute with the president's security last Friday, citing the safety of his staff.
Yoon, whose brief declaration of martial law on December 3 plunged South Korea into its worst political crisis in decades, is under investigation on suspicion of treason and abuse of power.
If arrested, Yoon, who has been suspended from office since being voted into parliament on December 14, would become the first president in South Korea's history to be arrested.
Park, who has ignored two previous summonses for questioning, said Mr Yoon had been treated unfairly and that the investigation should be carried out in a manner worthy of “national honor”.
Yoon's legal team said attempts to arrest the ousted president had no legal basis and called on authorities to charge him or seek an arrest warrant, which requires a court hearing.
Meanwhile, polls released this week showed support for Yoon and the People Power Party (PPP) despite their legal challenges.
In a Gallup Korea poll published Friday, 64 percent of respondents said they supported Yoon's removal from office, down from 75 percent shortly after the martial law ruling.
The PPP's approval rating rose to 34 percent, up from 24 percent about a month ago.