DOWN: Charlotte Dawson was the victim of a Twitter troll tirade.

Expat New Zealand celebrity Charlotte Dawson is in hospital after a vicious Twitter attack from hundreds of trolls last night.

Australian news website news.com.au has reported Dawson, 46, was taken to St Vincent Hospital in Sydney in the early hours of the morning.

Police were reportedly called to her inner-city Sydney residence at 3.05am (local time).

Dawson last night appeared on Nine Network's A Current Affair and Ten Network's The Project to expose vitriolic Twitter abuse she had suffered this week.

The appearances prompted many more followers to call for the celebrity to "please go hang yourself", according to news.com.au

Just an hour before an ambulance was called to her home, Dawson posted "Hope this ends the misery" and "You win x."

That was after enduring a barrage of tweets directed to her containing pornographic images, pictures of dead bodies, and vile messages.

"Shutup b****, no one loves you," posted one follower.

Other tweets included: "please do the favour and go hang yourself", and "please put your face in a toaster".

While Dawson is no stranger to cyber bullying, the war apparently started when she moved to expose abusive tweets posted by a mentor at Melbourne's Monash University.

Tanya Heti has since been suspended from her job, and her Twitter account has been deactivated.

One hater last said @MsCharlotteD Is f****** stupid. You think you can make an innocent woman jobless because you're famous? Think again."

It would appear from one of Dawson's own tweets, she believed most of the trolls were from New Zealand, however it is not known whether that was the case.

One follower tweeted her: "@MsCharlotteD I am quite frankly appalled at how you are using these hateful comments directed towards you as open ammunition against NZ".

Dawson replied saying "@taintedromance9 they are from NZ? How's that appalling its the truth."

Dawson had started off trying to retweet many of her hate-filled messages, but in the early hours of the morning it apparently got too much.

She is reportedly doing okay and was expected to make a full recovery, however had asked media respected her privacy.

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