A number of elderly people in the county have been robbed in their homes this week.
The first incident happened at about 9.30pm on Wednesday, February 17, when two men knocked on the door of a house in Main Street, Charlton, near Brackley.
The men, who were wearing black clothing and balaclavas, asked the victim if her car was parked outside and suggested she should move it.
She said she would and when she went to close the door, the men forced their way through the door, pushing her and asking ‘where is the money?’.
They were disturbed by a concerned neighbour, ran off and got into a four-door metallic blue Mercedes hatchback, with twin exhausts and an AMG badge on the back.
They stole a black leather handbag.
At about 9.45pm on Thursday, February 18, an offender called at a house in Wade Meadow Court, Northampton.
When the victim answered the door, the offender walked straight in and grabbed and pushed the victim, who tried to defend himself.
The offender left the house after searching other rooms and stealing a wallet.
Two similar incidents also happened in the Wellingborough area the same evening, where offenders broke in through the front door and restrained the elderly householder while searching through rooms in the property.
The first happened between 9pm and 9.30pm in Manor Close, Irchester.
The second took place at a house in College Street, Wellingborough, at about 9.45pm.
Det Insp Danny Gasson said: “While we cannot at this stage say whether these incidents are linked, we do know there have been a number of similar incidents in recent weeks, where the offenders appear to be targeting the homes of elderly or vulnerable victims.
“The victims have understandably been left extremely shaken and upset following these incidents.
“An investigation is ongoing and I would urge anyone who has any information about who may be committing these crimes to call us in confidence or, if they would prefer to remain anonymous, to contact Crimestoppers.
“In the meantime I would encourage residents to be extra vigilant and urge people, especially the elderly or those living alone, never to open the door to anyone they are not expecting.
“If you do not recognise the caller, speak to them without opening the door.
“A genuine caller will understand – and if you’re not sure, don’t open the door.”
Witnesses to any of these incident, or anyone with information about the people involved or the vehicles they use, are asked to call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555.