It is believed that supermassive black holes are found in the centres of galaxies, including the Milky Way. Still, only indirect evidence has been gathered for the existence of these enigmatic objects that are predicted by the general theory of relativity. With the Event Horizon Telescope, a Very Long Baseline Interferometry network of millimetre-wave (radio) telescopes, it will be possible to directly image the `shadow' of the event horizon of the black hole at the centre of the Milky Way, Sgr$~$A$^*$.
Although the Event Horizon Telescope utilises an extensive network of telescopes, there is a huge gap in the coverage of the $u-v$-plane for these observations across Africa.
We discuss the benefits of adding the Africa Millimetre Telescope to the Event Horizon Telescope and present Mt.$~$Gamsberg in Namibia as the best site for this new and first mm-wave telescope in Africa.