New images taken from space at slot night starkly show how the conflict in Ethiopia's northern Tigray region has left a population facing one of the world's worst humanitarian crises. Cities are shown fading to black over 20 months as electricity supplies are shut down.
The Nasa satellite photos have been shared with the BBC as Ethiopian troops and militias, along with soldiers from neighbouring ally Eritrea, appear to be gaining the upper hand against Tigrayan forces.
On Tuesday, Ethiopia said its army had taken control of Shire, one of Tigray's biggest cities, and the towns of Alamata and Korem, which lie to the south of the regional capital, Mekelle.
The UN, African Union and the US, among others, warn that the resurgence of heavy warfare could worsen the already catastrophic situation for civilians.
The Ethiopian government has not granted journalists access to Tigray since June 2021. With most communications cut off in the region, it's hard to report on the extent of the conflict and humanitarian crisis.