Police said the alleged incident happened at the premises on Mulcaster Street on Saturday (7 March) between 19:40 and 20:05.
Appealing for witnesses, officers described the reported sequence of events as follows: “A man entered the Turkish Delight Takeaway and began shouting at staff behind the counter before pulling what resembled a crowbar from his trousers and using this to threaten them. The man then left the premises and walked up Mulcaster Street towards Hill Street.”
They added: “The man was described as white, approximately 40 to 50 years old, approx. 5’6 / 5’7 in height and bald. He was dressed all in black with a black hooded top, with the hood up. No one was injured during the incident.”
A 52-year-old was later arrested and remains in police custody.
Anyone who was in the takeaway at the time or who has more information is urged to call 612612 or make an anonymous report using the Crimestoppers website.
