Footage shows the rider being held down on the ground at one point.
Deliveroo says it's carrying out an urgent review into an apparent attack on one of it's riders in Dublin.
Footage, which has been shared online, show a group of people surrounding the delivery rider in Temple Bar on Monday night.
The rider is held down on the ground at one point.
Deliveroo told the Herald it's carrying out an investigation into the "appalling incident".

Sharp Rise In M9 Collisions With Garda Call-Outs Up Year-On-Year
Councillor Seeks Clarity On How Often Nightclubs and Late Bars In Naas Are Inspected For Fire Risks
New Figures From CSO Reveal How Much International Protection Applicants Earn Compared To Average Worker In Ireland
Unpaid Eight-Month Work And Training Placement For Adults With Disabilities Branded "Extremely Unfair"
Department Of Education Defends Kildare SNA Cuts Amid Claims Of Reduced Need At Some Schools
Naas Nurses Threaten Escalation As Staffing Row Deepens
Driving Tests Face Disruption As RSA Testers To Strike Next Week
Jury Delivers Not Guilty By Reason Of Insanity Verdict In Ballyfin Demesne Strangling Case