A pensioner was knocked to the ground when her handbag was snatched from her hands by a thief in Seaford.
Police said she was walking along a twitten at 4.30pm between the A259 Eastbourne Road and Perth Close when the criminal struck.
This is the third bag snatching in the town in recent weeks and police said it was possible the incidents were linked.
Bag snatchings also occurred in Bramber Lane, in Seaford, on Monday, February 10 and in Hillside Avenue, Seaford, on Thursday February 13.
The latest robbery involved an 83-year-old woman who was approached by a man as she walked along the footpath.
The thief grabbed her black leather handbag, knocking her to the ground and made off towards the A259.
He was described as being white, 5ft10, in his late teens and of slender build. He was thought to have been wearing a dark hoodie and jeans.
Inspector Stephen Tullett said: “Despite recent events this is an unusual crime for Seaford and we are keen to speak to anyone who saw the incident.
“If anyone finds the handbag or has other information I would ask that they phone Sussex Police on 101 or email firstname.lastname@example.org, quoting serial 1130 of 19/2.
“Alternatively, they can call the independent charity Crimestoppers free and anonymously on 0800 555 111.”