US First Lady Melania Trump has visited a former slave fort in Ghana on the second day of her solo trip to Africa.

She said the “dungeon is really something that people should see and experience” and “what happened so many years ago is really a tragedy”.

People were kept naked and chained in the 17th Century Cape Coast Castle, waiting to be shipped as slaves.

Mrs Trump’s African tour will include Kenya, Malawi and Egypt and is intended to promote children’s welfare.

President Donald Trump has not visited Africa since taking office in January 2017.

In February, a row broke out after he allegedly used “shithole” to describe some African nations.

Mrs Trump’s week-long trip to the continent is seen as helping to heal some of the divisions.

The highlight on Wednesday was her tour of Cape Coast Castle, a major outpost on the Atlantic slave trading route.

She first paid a courtesy visit to a local traditional ruler, Osabarimba Kwesi Atta II, meeting him in Obama Hall, named after former US President Barack Obama.