A 30-year-old man had his car stolen in a Northampton street after a thief got into the vehicle and demanded the keys.
The man was sitting in his Volkswagen Golf in Duke Street, The Mounts at about 8.30pm on Wednesday when the thief opened his car door.
A spokesman for Northamptonshire Police said: “The man opened the passenger door, demanded the driver’s keys and money and assaulted him.
“The driver got out of the car and ran down the road and the offender stole the car and his mobile phone.”
The car was a silver Volkwagen Golf, registration SV61 MXD.
The thief is described as a chubby white man with stubble, about 5ft 6in, wearing a black hooded top and black jogging bottoms.
Witnesses or anyone with information can call Northamptonshire Police on 101 give information anonymously to Crimestoppers on 0800 555111.