The PSNI are treating threatening graffiti targeting Tánaiste Leo Varadkar in the Belvoir area of south Belfast as a hate crime.
Police say the graffiti, on a wall at Drumart Square, was written sometime between 6pm on Friday and 10am this morning.
They have urged anyone with information about the incident to call officers at Lisburn Road.
The message has since been painted over.
There has been condemnation over the incident, with Sinn Féin leader Mary Lou McDonald describing it as a "vile, shameful attack" on the Tánaiste.
"Threats and intimidation driven by sectarianism and racism must be faced down by all of us together," she said.
Northern Ireland First Minster Arlene Foster said "violence or the threat of violence has no place in democracy. I condemn those behind this".
Northern Ireland Deputy First Minister Michelle O'Neill urged anyone with information to speak to police.
"Shocked at the disgusting graffiti targeting Leo Varadkar which I condemn, as will the majority of people across the community," she tweeted.
"This is a hate crime motivated by prejudice. It's also criminal damage and anyone with information should contact police who must investigate."
South Belfast MP Claire Hanna said she had been contacted by residents who were "nauseated" by it.
"These were sickening words that look like they were borrowed from the Ku Klux Klan," the SDLP representative told PA.
"It's hate crime, incitement to violence and a dangerous escalation of careless language in recent weeks.
"We have to get serious about treating the elements behind rhetoric and actions like this as the threat to society that they are.
"This is a very challenging time politically and it needs all political leaders to be crystal clear that relighting old fires serves no-one.
"These views aren't widespread in Belvoir or elsewhere in South Belfast. PSNI are investigating and I hope anyone with information will pass it on."
Meanwhile, Patrick Corrigan of Amnesty International tweeted: "Leo Varadkar has been a very welcome visitor to Belfast, whether to the Orange Order or Belfast Pride. That welcome will continue."
