Early reports suggested at least seven people had died, perhaps more, in a stampede at a Hindu gathering in the city of Prayagraj. Researchers in Germany have tried to explain such events since a tragedy here in 2010.

Source: https://www.dw.com/en/india-maha-kumbh-stampede-why-these-crowd-events-happen/a-63617455?maca=en-rss-en-all-1573-rdf