Czech president receives threatening letter

President of the Czech republic Miloš Zeman got an envelope with a white powder and a letter. Letter says that president will be killed and some other kind of threats. The writer of the letter says he's from the Islamic state (ISIL). Police, fire department and bomb squad responded to the Prague castle, president was in Zlín by the time of the letter's arrival. Zeman said that the letter is work of some public idiot. Mr. Zeman is known for his attitude against Islam and ISIL. Just a few days ago said that the Czech army needs to buy more drones to get rid off all ISIL soldiers.