A student "grabbed by her throat" in a random attack by a 6ft man was so terrified she left Liverpool and returned to her home in Northern Ireland.
The victim and friends were walking down Cecil Street, in Wavertree, when they were accosted by the suspect on Saturday.
The incident was followed by a brick being thrown through the window of her house.
Merseyside Police are now hunting the man.
Liverpool Hope University student Shannon Benson, 22, was with the victim but was not attacked herself.
She told the ECHO she had "never been so afraid in all her life" and said "the horrible memory will probably stay with us forever."
A spokeswoman for the police said officers were called at 5.45pm to a report about a group of women in their 20s being confronted by a second group.
The spokeswoman said: "A man from the group, described as around 30 years old and 6ft, began pointing and shouting at one of the women, before assaulting her by grabbing her throat.
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"A short time later, a brick was thrown through the window of the victim’s house on Cecil Street."
Shannon has lived with two friends in Liverpool for three years and said they have "never experienced anything like this".
She said the victim, who did not wish to be named, has returned to her home in Belfast following the violence.
Shannon said: "We are all really shaken up about it.
"One girl who was assaulted has actually flown back to Belfast in a terrible state. We are just so confused by the actions of them, especially when we have never done anything towards them."
She added: "It will be horrible memory that will probably stay with us forever."
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Shannon shared an image of the damage caused to the window of the property, which shows glass shattered.
She said she hopes to raise awareness of the frightening incident for other people living in the area.
She said: " I've never been so afraid in all my life and I hope no one ever has to experience anything like that again.
"I hope the people who did this to us are held responsible, no one should be made to feel like that in there in own home."
An investigation is ongoing to establish the exact circumstances and whether the incidents are linked and anyone with information is asked to contact @MerPolCC, 101 quoting ref. 20000724181 or Crimestoppers, anonymously on 0800 555 111.