Jessica Noah Morgan, 24, says she was preparing to leave the London-based carnival when the man suddenly “soaked” her in liquid and told her it was acid.
Panic-stricken, she desperately tried to clear the liquid off her face. It was only when she realised it wasn’t burning that she determined the man had lied.
Turning to face her attacker, Jessica furiously told him that pretending the fluid was acid wasn’t funny – at which point, she claims he punched her in the face.
She says she was left in hysterics, with a painful face, ear and jaw.
The terrifying incident occurred yesterday evening – one day after a crowd of revellers had “mild acidic liquid” thrown over them at the carnival.
Jessica, from London, says the man’s actions were filmed by his pals – and that revellers around her also feared the substance was acid.
She told Mirror Online: “A man threw liquid in my face and said it was acid – then punched me in the face. It happened around 6ish when carnival was finishing
“I was walking towards the exit to Shepherd’s Bush. Suddenly, I was completely soaked with liquid, and people [were] shouting that it was acid.
“The guy and his friends were filming it. When I turned to him and told him that pretending liquid is acid wasn’t funny, he punched me in the face.”
She added: “It turned out to be water or something. I was fine but was completely soaked, so with everyone running away and shouting acid, I was terrified.
“I realised as I was clearing it off my face it wasn’t burning and was only water.”
Jessica told police officers at the scene about the shocking attack. She says they appeared concerned and asked her to recount what had happened.
“I was in hysterics and crying and I said someone punched me in the face after they pretended to throw acid on me,” she said. “A police officer told me to go home and showed me which way to go to Shepherd’s Bush.”
The young woman, who has yet to formally report the incident, was left with a “sore face and ear and jaw” from where the man punched her.
She had been enjoying the popular carnival with her friends before the attack. But now, she has vowed to not return to the event.
In the earlier incident, liquid was thrown near Ladbroke Grove on Sunday evening.
Three people reported having skin irritation and police said they were investigating.
Yesterday, unsubstantiated rumours of another attack at the carnival sparked mass panic, as footage emerged of crowds screaming and fleeing. It is not clear when the video clip was captured, nor whether it was linked at all to Jessica’s attack.
Police said they were looking into what caused the panic.
The dramatic footage was posted on Snapchat on Monday by user Rastamouse88, who captioned it: “Apperently there’s an acid attack. (sic)”
One reveller, who did not want to be named, told Mirror Online: “We were walking down the road towards Portobello and saw loads of police jogging towards us.
“The next minute someone shouted ‘run!’ and everyone started running at us.”
They added that things calmed down soon afterwards but “people were on edge” following the spate of acid attacks across the capital.
One reveller wrote on Twitter: “Yep carnival is cancelled for me I’ve just received information from someone I know that there was an acid attack.”
The Met Police confirmed the liquid was thrown over people gathered at St Charles Square at 7.55pm on Sunday.