Faber said police were investigating the case but added that it was difficult to say more at present although they knew the number from which the message was sent.
He said the police suggested providing protection for the teenager and that this would be done in agreement with Glavas.
Glavas said the sms contained obscenities over his speech in parliament earlier this week. "You will end up in jail and we will kill your son," Glavas told Hina quoting the message and added that he received it while talking to a journalist.
Glavas said he would have otherwise dismissed the sms but contacted the police because his son was threatened. He underlined that the police had offered to protect his son, but said he would make a decision after talking to the boy's mother, "because the question is how much can one trust the police".
Parliament stripped Glavas of immunity with a majority vote earlier this week so that an investigation could be launched into allegations that he was responsible for war crimes against civilians committed in the eastern city of Osijek in 1991.