The singer had warned fans not to engage with fake social media accounts

O'Connor had warned fans to not engage with fake social media accounts which were posing as her and urged anyone to check with her management before trying to contact her.

In a tweet she said: "There is one stalker. Female. Violent: again, NEVER engage with anyone claiming they know me without asking my management."

It isn't the first time the singer had to deal with people pretending to be her online. One post claimed that someone "extremely disturbed" had been posting as the 56-year-old online.

"Also a warning, previously an extremely disturbed male sexual predator pretended to be me on Twitter," she said.

"Please never engage with anyone claiming to be any celeb, without confirming they are who they say. This can be achieved by contact with their management."

A close friend of O'Connor's told The Sun: "Sinéad felt very uncomfortable. She had started a new life in ­London but this person was making her feel on edge.

"Sinéad confided in people and said she’d had gifts she believed to be from this person. It was upsetting."

Related links:

• Morrissey blasts musicians posting tributes to Sinéad O’Connor following her death
• Conor McGregor pays heartbreaking tribute to Sinead O’Connor
• Sinead O’Connor once ripped photo of Pope live on TV to condemn child abuse in Catholic Church
• Sinead O’Connor’s family release statement following iconic singer’s death