A 41-year-old man was attacked by a group of people shortly after 1pm, and his phone and a packet of cigarettes were stolen.
Six arrests have been made, with five men and a 21-year-old woman released under investigation.
A spokesperson for South Yorkshire Police said: “Police investigating a robbery in Barnsley town centre on Friday (8 May) have made six arrests so far.
"Shortly after 1pm on VE Day, it’s understood that a 41-year-old man was walking down an alleyway when he was attacked by eight others.
"The man was reportedly hit in the face and pulled to the ground before his mobile phone and a packet of cigarettes were stolen.
"Police have arrested six people on suspicion of robbery.
"Five men, aged 34, 28, 25, 27 and 19, and a 21 year old female have all been released under investigation as enquiries continue.
"As enquires continue, police are asking anyone with any information regarding the incident to contact 101. The investigation number is 14/72599/20."
Five people have now been rearrested following this incident - click here for the latest update from South Yorkshire Police.