What is the black neighbourhood of Montreal?

Excuse me, could you possibly explain what is meant by the term "the black neighbourhood of Montreal"? Is this a reference to a particular area within the city that is predominantly inhabited by individuals of African descent? Or is it a colloquial expression used to describe a certain part of town that might be associated with certain socio-economic or cultural characteristics? I'm curious to understand the context and meaning behind this phrase, as it's not a term I'm familiar with in relation to Montreal.