Chinese-made electric multiple unit (EMU) trains run on the metro rail track in Abuja, Nigeria, on May 23, 2024. Since its relaunch for commercial operation about a week ago, talks about the Abuja Rail Mass Transit (ARMT) have been making the rounds, with local media abuzz with the prospect of the light rail system in the fast-developing Nigerian capital city. (Photo by Guo Chen/Xinhua)