Zakharova said in a statement that the Russian side “can confirm that it has received such an appeal from the Finnish embassy,” adding that the envelopes were addressed “to the military attache and his assistants”.
"When the first envelope was opened, a white powder was found in it, after which the other two letters were left sealed,” the spokeswoman said.
According to Zakharova, all three envelops were handed over to Russian law enforcement agencies.
“The Finnish Embassy will be provided with information on the results of the study of the incident," the spokeswoman said.