The threatening graffiti was daubed on a wall on Ravenhill Avenue on several occasions. It is close to a new housing development launched several months ago as a shared neighbourhood scheme under the Together: Building a United Community project from the Office of the First Minister and deputy First Minister.
Ms Lo said the graffiti was not representative of the vast majority of residents there.
“South Belfast is a diverse and welcoming community, with people from all backgrounds living here. Mixed communities and neighbourhoods are one of the best ways to ensure a truly shared future for all.
“This graffiti is an unwelcome move that will be condemned by all right-thinking people. It is disgraceful that someone can think they can threaten and make people feel unwelcome by using this language and in a public forum.
“Those responsible for this must be apprehended by the police and I urge anyone with information to give it to the PSNI as soon as possible.”