Coleen Nolan is reportedly distraught following threats to rape her and bomb her house.
But the Nolans sister has vowed not to quit the social media network Twitter, despite the online abuse.
The former Loose Women presenter said she refuses to leave the social media network because of a small minority of “twisted souls”.
She also said she knows people used the website to send heartfelt messages of support to her late sister Bernie Nolan before she lost her battle with cancer at the beginning of July.
The threats, coming from a single account, included a message that Coleen’s house would be bombed at exactly 10.47pm.
Mum-of-three Nolan, 48, replied to a message boy-band Blue’s artist manager Paul Baylay posted on the public sphere, as he noted Blue had been targeted by the same account.
“[This account] thinks he’s above the law and puts shame on his parents. Well I’m going to name and shame you,” he wrote.
“Yeah he sent a very threatening one to me too!” Coleen wrote.
Blue member Antony Costa replied to the two messages, “...and to me too”.
“Same person as the last one defo!!! Why is it all to blue and me??? Weird!” Coleen wrote.
The Metropolitan police and the official Twitter social media account were also mentioned in the messages.
Coleen, who is an agony aunt for the Mirror, told the paper, “Twitter can be a scary place because sometimes you come across some very strange people who think that by hiding behind online profiles they have free range to bully, harass or abuse you.
“I know that the public were amazing supporting my sister Bernie on there and sending me messages of love for her when she was ill.
“Because of that I’ll never be driven off Twitter by a small minority of twisted souls despite it turning serious when they threatened my life and suggested attacking my family at my address.”