caption of the image Lilian Seenoi-Barr is director of the North West Migrants Forum, based in Londonderry
A director of a group that helps ethnic minorities in Northern Ireland claimed that racism is "incredibly high in unionist areas ".
However, she told a Westminster committee that hate crimes occur in co-unionist and nationalist communities.
Lilian Seenoi-Barr also accused DUP MP Gregory Campbell of "inciting hate crime "with comments made recentlyon the Songs of Praise TV show.
Mr. Campbell strongly rejected the request.
The Northern Ireland Affairs Committee gathered testimony on the experiences of ethnic minority communities living in Northern Ireland.
Ms Seenoi-Barr, director of the Londonderry-based North West Migrants Forum, said: "Our reality on the ground is that many of the people who come to my office that I help live in unionist areas.
"This does not mean that people who live in nationalist areas do not experience racism or hate crime because they do and we have evidence to show that.
"But it's incredibly high in Unionist areas.
'Most depressing thing '
Mr. Campbell said there had to be more data available to make a "better assessment " of his claims.
He said: “If immigrants aret primarily located in unionist or loyalist areas, this could provide context in terms of their greater likelihood of being attacked where they are most likely to live.
Ms Seenoi-Barr replied: "In Derry most of our ethnic minorities live in the Waterside because they are nurses and doctors at Altnagelvin Hospital and the availability of homes could be in a union-dominated area.
"So that could be the reason.
image source, PAcemaker image caption Gregory Campbell said he "had not committed any hate crimes
She went on to say that "the most depressing thing " for the ethnic communities, which make up around 2% of the population of Northern Ireland, is that "politicians do not stand with us when we need them ".
Ms Seenoi-Barr, who is also an adviser to the SDLP, said: " They will condemn hate crime attacks, but you will never hear about minority issues unless there is hate crime in the media. "
Songs of Praise controversy
She then focusedcharges against Mr. Campbell.
In February, Mr. Campbell was criticized for describing the number of blacks on an edition of Songs of Praise like " Hfrance.fr at its worst BLM (Black Lives Matter) .
A number of organizations against racism and ethnic minorities called on him to apologize.
"He incited to commit hate crimes within of our community by simply asking why there weren't any whites in a program, "Ms. Seenoi-Barr said.
" If our politicians use language that fuels hatred, we are the ones who experience this hatred. "
Mr. Campbell responded to his remarks.
" I will make it clear that I did not commit no hate crimes, "he said.
" It does a disservice to this committee and to the witnesses who come before it. to affirm that ahe person has been involved in a hate crime who has been a victim of hate crime for many years. "