In a suburb of Moscow, Russia, the roof of the Transvaal water park collapses, killing more than 28 people, and wounding 193 others.

Moscow is the capital and largest city of Russia, standing on the Moskva River in Central Russia. It has a population estimated at over 13 million residents within the city limits, over 19.1 million residents in the urban area, and over 21.5 million residents in its metropolitan area. The city covers an area of 2,511 square kilometers (970 sq mi), while the urban area covers 5,891 square kilometers (2,275 sq mi), and the metropolitan area covers over 26,000 square kilometers (10,000 sq mi). Moscow is among the world's largest cities, being the most populous city entirely in Europe, the largest urban and metropolitan area in Europe, and the largest city by land area on the European continent.

Transvaal Park was a water park in Yasenevo, a southern district of Moscow, Russia. It had an African theme and was named after a former province of South Africa. With heated pools, including a wave pool and twisting "river" for tubing, it became one of the most popular attractions in the Moscow area and a symbol of the country's bloom of private enterprise. After being open for two years, the roof collapsed, killing 28 people. The park was subsequently closed.