Police say an 18-year-old man and a 17-year-old boy have now been arrested following a robbery in Lucknow Road, Mapperley Park, Nottingham.
The incident happened at around 6.10pm on Tuesday, May 28, 2019.
A spokesman for Nottinghamshire Police said: “An 18-year-old man was threatened and punched in the head. He suffered minor injuries.
“A mobile phone and a bag was stolen.
“The two arrested remain in police custody.”
Anyone who witnessed the incident or has any information that could help the enquiry is urged to call Nottinghamshire Police on 101, quoting incident 697 of 28 May 2019.
Alternatively call Crimestoppers anonymously on 0800 555 111.