Incheon: A special counsel team raided the Coast Guard's offices Friday, reopening an investigation into the agency's suspected involvement in former President Yoon Suk Yeol's failed martial law bid in 2024.

According to Yonhap News Agency, the team, tasked with investigating uncovered allegations surrounding Yoon and his decree, said it sent investigators to carry out a search and seizure at the Coast Guard's offices in Incheon, just west of Seoul.

The team is looking into allegations that a former senior Coast Guard officer called for personnel to carry firearms and dispatched officials to a joint investigation headquarters after Yoon's martial law declaration on Dec. 3, 2024.

A previous special counsel team had cleared the Coast Guard planning and coordination official after failing to find signs he took part in planning for Yoon's decree and determining that he did not have authority to dispatch personnel. The earlier investigation also did not find evidence the Coast Guard took specific action in line with the official's calls.