"self-defense" forces stormed the company's headquarters to demand nationalization. Head of the Republic Sergey Aksyonov claimed that in at least one case "Employees established control of the enterprise on their own, we just helped them a little". The nationalization of Ihor Kolomoyskyi's assets was, according to Aksyonov, "totally justified due to the fact that he is one of the initiators and financiers of the special anti-terrorist operation in the Eastern Ukraine where Russian citizens are being killed". By late October 2014 90% of the heads of Crimean government-owned corporation were fired as part of a supposed anti-corruption campaign, although no charges have been filed against anyone. Human rights activists in the region have described the seizures as lacking a legal basis and dismissed the "anti-corruption" rationale. In June 2015 the Federal Security Service (FSB) started several anti-corruption criminal cases against high ranking Crimean officials. According to Aksyonov the FSB had opened these criminal cases because it was "interested in destabilizing the situation in Crimea". On 6 May 2014 the National Bank of Ukraine ordered Ukrainian banks to cease operations in Crimea; the following weeks the Central Bank of Russia closed all Ukrainian banks in the peninsula because "they had failed to meet their obligations to creditors". Eight months after the 21 March 2014 formal annexation of Crimea by Russia it became impossible for clients of Ukrainian banks to access their deposits and most of them did not pay interest (on loans). A "Fund for the Protection of Depositors in Crimea", as part of Russia's Deposit Insurance Agency, was set up by Russia to compensate Crimeans. By 6 November 2014 it paid out more than $500 million to 196,400 depositors; the fund has a limit of about $15,000 per bank account. In July 2015, 25 banks were operating in Crimea while prior to the Russian annexation there were 180 banks. While many international businesses left the region, in 2015 only a few Russian companies are reported to have invested in Crimea, fearing sanctions. Under the international sanctions Crimea's once bustling IT-sector shrunk to a few IT companies. Russia invests significantly in Crimea, according to "The Federal Target Program for the Development of the Republic of Crimea and Sevastopol" they plan to invest one trillion Russian rubles (15.3 billion dollars) before 2022 The Russian government claims that those investments are necessary because Ukrainian mismanagement of the Crimean territory caused losses of 2.5