Reportedly, the calls are being made by a man in Canada, and his latest threat is against the Blue House, the executive office and official residence of the South Korean head of state. He's currently being investigated for threatening to plant a bomb at the government building, and South Korean police have also asked for help from Interpol.
According to reports, the man called the Seoul Police Station on June 26, expressing his discontent with the current South Korean President. He claimed he had bought two guns from Russia and wants to blast the Blue House.
Stay tuned for updates.