A man in his 40s was sitting in his car in the Morrisons car park in Worting Road between 2am and 2.30am.
Three men approached his vehicle and tried to open the doors.
They were locked and a demand was made for the victim to hand over his laptop.
Car windows were then smashed and two phones, the laptop and an i-Pad were taken.
There was a struggle and the victim sustained minor injuries.
All three suspects were last seen heading towards the underpass near Wicks.
The men are described as follows:
5ft 6ins tall
Wearing a blue jacket, light jeans and white trainers
Spoke with an Eastern European accent
Wearing dark coloured clothing
Wearing a baseball cap
If you have any information, please contact us on 101, quoting reference number 44180290017.
In an emergency, call 999.