On 17 April 2021, the Czech Republic announced its intelligence agencies had concluded that GRU officers, namely members of Russian military intelligence GRU's unit 29155, were involved in two massive ammunition depot explosions in Vrbetice (part of Vlachovice), near the Czech-Slovak border, in October 2014. The explosions killed two persons and "inflicted immense material damage, seriously endangered and disrupted the lives of many local residents", according to the Czech prime minister.