Police are seeking information after the graffiti was scrawled on a wall outside the Post Office in George V Avenue.
The wording, in black capital letters, appeared on the wall sometime between 5pm on Wednesday November 6 and 9am the following morning.
PC Sharon Moore said; “We will not tolerate such offensive behaviour and are doing everything we can to find the perpetrators. If you saw any suspicious activity around the Post Office that night, or have any other information please call us on 101 or email ‘firstname.lastname@example.org’ quoting serial 0299 of 7/11. Alternatively you can call the independent charity Crimestoppers on 0800 555 111.”