Stalin's death was announced on 6 March. The body was embalmed, and then placed on display in Moscow's House of Unions for three days. Crowds were such that a crush killed about 100 people. The funeral involved the body being laid to rest in Lenin's Mausoleum in Red Square on 9 March; hundreds of thousands attended. That month featured a surge in arrests for "anti-Soviet agitation" as those celebrating Stalin's death came to police attention. The Chinese government instituted a period of official mourning for Stalin's death.