South Korea’s unification ministry has rejected a civic group’s request to visit North Korea to discuss a reunion project for families separated by the Korean War, following a weeklong investigation into an invitation allegedly sent by a DPRK organization.

A spokesperson said the ministry reached its conclusion after consulting with “relevant government agencies” about the application to visit Pyongyang filed by South-North Separated Families Association.

“We have reviewed whether the organization that issued the invitation is trustworthy, and if it has the authority to provide safety of our citizens’ lives,” spokesperson Lee Hyo-jung Lee Hyo-jung in a briefing Friday morning.