A Ukip councillor is alleged to have described "illegal immigrants" as "sandal-wearing, bomb-making, camel-riding, goat-f******, ragheads".
The comments were posted on the Facebook page of Chris Pain, the Ukip leader of Lincolnshire Council and East Midlands regional chairman.
Pain is one of a number of Ukip councillors exposed by a Sunday Mirror investigation as appearing to make racist comments online.
One called US president Barack Obama a "closet Imam" and another said there were "too many Muslims" in the UK.
The full text of the comment read:
"Have you noticed that if you rearrange the letters in ‘illegal immigrants’, and add just a few more letters, it spells, ‘Go home you free-loading, benefit-grabbing, resource-sucking, baby-making, non-English-speaking ********* and take those other hairy-faced, sandal-wearing, bomb-making, camel-riding, goat-********, raghead ******** with you."
Pain claims his Facebook account had been hacked.
It also came to light over the weekend that all 16 Ukip members of Lincoln council refused to sign an anti-racism pledge set up to ensure all county residents are treated equally and have the same rights to services.
Despite Nigel Farage's party seeing a surge in poll ratings lately they continue to be dogged by members' controversial comments and postings on social media.
Only yesterday a top Ukip donor said women wearing trousers was "hostile behaviour".
Farage had to be locked inside an Edinburgh pub for his own safety after an 'anti-racism' protest against the Ukip leader turned ugly in Scotland on Thursday.