January 2022 was the most deadly month for Saudi-led coalition airstrikes onYemen in more than five years, a war monitor said Wednesday. The Yemen Data Project said 139 civilians were killed and 287 injured in airstrikes in January. This took the total civilian casualty toll from coalition airstrikes since 2015 to more than 19,000, the monitor said. The monitor’s findings follow an airstrike on a prison in Saada, northern Yemen last month that killed more than 70 people. Intense fighting is causing civilian casualties across the country. Last month, the UN Children’s Fund Middle East chief Ted…