In tonight’s edition: 

Ethiopia’s Tigrayan rebels seize UNESCO World Heritage site Lalibela. Fighters crossed over into the Amhara region in a widening of conflict that began in neighbouring Tigray last november after federal troops were sent in against regional rulers. And Tanzania arrests protesters as opposition leader Freedom Mbowe’s hearing is postponed. And we take you to Mauritania’s desert library where ancient manuscripts lie in the city of Chinguetti.