Police say it is in connection with an attempted armed robbery at Gina’s in Clayhall Road on Monday, June 20.
Shortly after 5.15pm a man who had his face covered walked into Gina’s and placed a knife and a bag on to the counter.
He demanded cash, but was refused and was prevented from getting behind the counter by a 71-year-old woman, who was not hurt.
The man then left and rode off on a blue and white bicycle.
The victim described the man as 5ft 6ins tall and slim.
He wore a black wool balaclava, a large hooded navy jacket, and black tracksuit bottoms.
He was carrying a lime green bag which had a pull cord top.
If you saw anyone acting suspiciously in the area please call DC Dave Sheppard at Fratton Police Station on 101 or contact us via the website hampshire.police.uk/internet/do-it-online/online-forms/message-for-officer.html
The 35-year-old has been bailed until August 15.