Counter-terror police have charged a Sydney woman with more than 60 offences over a tranche of threatening letters she allegedly sent to the city’s Jewish museum, its largest mosque and a commercial radio station.

Detectives from NSW Police’s Counter Terrorism and Special Tactics Command on Wednesday morning arrested the 36-year-old at her western Sydney home after launching an investigation into the alleged threats in May.

Police allege the woman sent 19 abusive letters purporting to be from another person to the Sydney Jewish Museum, Lakemba Mosque, and Sydney radio station 2GB. She is also alleged to have sent letters to politicians and local, state and federal government agencies.

Strike Force Eckon detectives charged the woman with 62 offences, including threatening death or grievous bodily harm, stalking and intimidation and dishonestly obtaining financial benefit by deception. She was refused police bail to appear in Parramatta Local Court on Wednesday.

“There is no excuse in our law-abiding society for anybody to be threatened with violence,” 2GB Mornings host Mark Levy said on Wednesday morning.

“I sit here and have a whole range of opinions on different things. Some of you agree, some of you disagree. If you disagree, there is no reason why you should threaten anyone.”

More to come