Multiple explosions and gunfire are reported after four armed men stormed the Dusit hotel in Nairobi, Kenya. The Somalia-based militant group Al-Shabaab claims responsibility. (BBC News)
The largest human gathering in the world, the Kumbh Mela festival, starts at Prayagraj (previously known as Allahabad), India. More than 120 million Hindu devotees, as well as tourists, are expected. (The Guardian)
U.S. District judge Jesse Furman issues a decision that invalidates the Trump administration's addition of a U.S. citizenship question to the 2020 census. This is the first ruling on this issue. There are four more lawsuits, filled by dozens of states, cities and other groups, yet to be heard. (NPR)