International relations department director-general Zane Dangor is puzzled by the UK's "strange" claims about the possibility of a terrorist attack on South African soil.
Dangor said he was waiting for the foreign office to provide proof for the "unfounded" allegations.
In the travel alert, which was updated on 4 January 2024 and is still in place, the UK's foreign office warned its citizens: "Terrorists are very likely to try to carry out attacks in South Africa. The main threat is from individuals who may have been inspired by terrorist groups, including Daesh, and who may carry out 'lone actor' attacks."