Far-right group Britain First staged a protest outside the East London Mosque yesterday described as "hapless" by the mosque.
Only a handful of supporters joined the demonstration in Whitechapel, which saw Britain First's deputy leader Jada Fransen, who is of Dutch extraction, tell Muslims they are worshipping a false prophet and won't make it to paradise.
In a YouTube video of the incident, Fransen is recorded saying that British First would "spread the good news of the Lord" and had been "met with hostility".
She asked a police officer: "Is it within your job description to come and mock a Christian who's preaching in the street?" Fransen later accused him of having told her the Bible forbids the eating of seafood and said he needed to show her more respect.
She said: "This is what's going on in the world now people. In our country, even the police are against us. This is a Christian country but we've got our own police force turning on us, traitors to this country."
A spokesman for the mosque, Salman Farsi, told the Evening Standard: "It was a bit worrying for us because we had a school group on a tour inside the mosque.
"There was a moment when they were provoking passers-by and someone confronted them and spat in their direction, so mosque staff stepped in to move them along."
