Three houses in a village near Daventry may have been targeted by the same burglars, police believe.
The properties in Crick were targeted by burglars last weekend.
The first incident took place on Sunday, March 9 between noon and 7pm in High Leys. In this incident, burglars broke into the property through an open window. The property was searched, but nothing was stolen.
The second house was targeted on the same day in Well Hill Close between 4.30pm and 9pm. The barrel of the lock on a door to the house was removed and jewellery and money was stolen.
The third break-in happened at a house in Main Road between 6.30pm on Friday, March 7 and 7.45pm on Sunday, March 9 when the lock from a patio door was removed, but the thieves did not manage to get inside the property.
Officers investigating all three cases believe they are linked.
Witnesses, or anyone with information about these incidents, can call the police on 101 or Crimestoppers anonymously on 0800 555 111.