In January 2018, scientists published a research

In January 2018, scientists published a research article showing the cloning of 2 long-tailed macaques, using the same technique that was used to clone Dolly the sheep in 1996.  The technique, called somatic cell transfer, or SCNT, involves removing the nucleus from an unfertilized egg and replacing it with the nucleus from a mature cell, before stimulating the cell to divide as if it were an embryo, and implanting it into a surrogate mother.

Since humans are in the primate family, it has been hypothesized that this technique could potentially be used to clone humans in the future1.  Additionally, the same kind of technique has been used by scientists to clone embryonic stem cells from adults2, with the hope of someday being able to grow transplantable organs, perfectly matched to an individual, thereby eliminating the need for organ donation waiting lists and the possibility of never finding a match.

1. https://www.cnn.com/2018/01/24/health/cloned-monkeys-study/index.html (Links to an external site.)

2. https://www.nature.com/news/stem-cells-made-by-cloning-adult-humans-1.15107