In recent weeks, a number of envelopes containing unidentified white powder have been mailed to Czech ministries, the office of the Czech Republic president and some media offices. Two of them, addressed personally to the country's interior minister and the finance minister, contained highly toxic poison.

MOSCOW, December 12 (Sputnik) — A package containing a toxic substance has been delivered to the Czech embassy in Bratislava, Slovakia, President of the Slovak police Tibor Gaspar said in a statement broadcast on local radio Friday.

"A package with unknown white powder was delivered to the Czech embassy in Slovakia on Thursday evening. Analysis conducted that night confirmed that it was a life threatening toxic substance. We are working closely with our Czech colleagues, over the investigation into this incident." Gaspar said.

The package was mailed from Sweden, the police chief said.

One embassy worker came into direct contact with the dangerous package when it was delivered, police said. The worker is currently under medical supervision.

On Wednesday, a suspicious package containing white powder was delivered to the Slovak parliament but chemical analysis found the substance was not dangerous.

In recent weeks, a number of envelopes containing unidentified white powder have been mailed to Czech ministries, the office of the Czech Republic president and some media offices. Two of them, addressed personally to Interior Minister Milan Chovanec and Finance Minister Andrej Babis, contained highly toxic poison.

As a result, the Czech Republic introduced a heightened security regime in all governmental offices and foreign embassies at the end of November.