"I will speak about this on Monday at the European Union foreign ministers' meeting", Hamacek said.
Britain stands in "full support" of the Czech Republic which has exposed the lengths Russian intelligence services will go to, foreign minister Dominic Raab said on Sunday after Prague expelled 18 Russian embassy staff.
"There is well-grounded suspicion about the involvement of officers of the Russian intelligence service GRU, unit 29155, in the explosion of ammunitions depot in the Vrbetice area", Babis told a briefing shown live on television.
The United States and Britain said they stood in full solidarity with the Czech Republic in the dispute with Russian Federation.
Separately on Saturday, Czech police said they were searching for two men carrying various passports, including Russian ones in the names of Alexander Petrov and Ruslan Boshirov.
Several explosions shook the Vrbetice ammunition depot, 330km (205 miles) southeast of the capital, Prague, on October 16, 2014.
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Russian politician Vladimir Dzhabarov said the Czech Republic's claims were absurd and that the Russian reaction to the expulsion of its diplomats should be proportionate, the Interfax news agency reported. They killed two employees of a private company that was renting the depot from a state military organisation.
According to local media reports, the move comes in response to evidence obtained by the country's security services which suggests Russia's involvement in two ammunition depot explosions in 2014 in the Czech Republic that had killed two people.
These are the same names used by two Russian intelligence officers the United Kingdom says carried out the poisoning in Salisbury, Wiltshire in 2018.
Petrov and Boshirov denied being Russian operatives or being involved in the Skripals' poisoning in March 2018.
"The Czech Republic took the Russophobe line of the U.S. by expelling Russian diplomats". The expulsions and allegations by the Czechs have triggered its biggest dispute with Russian Federation since the 1989 end of Communist rule, when Prague was under Moscow's domination for decades.