Reports on social media said armed officers could be seen on High Street in Mosborough from around 7.30pm.
On Twitter, Sophie Warner wrote: “Anyone know what’s crackin in Mosborough and why there loads of police men with guns ????”
Matty Dale tweeted: “Coppers all over Mosborough.”
Mosborough Forum wrote: “It seems there has been some sort of incident on the High Street. Hope all residents are safe.”
And on Facebook, a man wrote: “Like something you see on the telly.”
We have contacted South Yorkshire Police and are awaiting a response.