A racist attacker tried to rip off a Sikh man's turban and told him "Muslim go back" outside Parliament, it is claimed.
Ravneet Singh claims he was in a queue outside Westminster as he was going to meet a Labour MP at Portcullis House.
He alleges the attacker shouted the abuse at him before grabbing his head covering, despite the fact he is a Sikh, not a Muslim.
The 37-year-old told The Independent that when the attacker pulled at his turban "it half moved and I grabbed it" and "before he could do anything else I shouted at him and he ran."
He claims that the perpetrator "made a racist comment in another language that I didn’t recognise" and was "a white man, but he didn’t sound English. He said something like ‘Muslim go back’.
"I pray for these racist people who don’t realise that we are all one.”
Singh works for an environmental organisation and was in the UK for three weeks, a trip which included his meeting with MP Tanmanjeet Singh Dhesi.
The MP has said he is “disgusted" to hear about "someone filled with hatred" attacking his guest and is asking the police to take “urgent action."
A spokesperson for the Metropolitan Police said it is investigating the matter but no arrests have been made.