A daytime burglar was disturbed by the resident of the house he was stealing from on Friday.
The resident, 26, was asleep in his bedroom of the Cranleigh Gardens house when he was disturbed by a noise between 1.15pm and 1.23pm.
He went into another room to investigate and found a man searching through a jewellery box.
The burglar threatened the resident then fled the property through a kitchen window, taking some jewellery.
He is descried as a white man, possibly Eastern European, in his late 20s to early 30s.
He was wearing a black beanie hat, black top and bottoms.
PC Ben Stone said: “It is possible that this man has been walking around the area when deciding which property to break in to and I urge anyone who has seen a man matching this description in the area recently to come forward and speak with officers as they may have information that could help identify him.”
Anyone with information relating to this investigation can contact PC Stone, in confidence, at Luton Police Station on 01582 394471, or Bedfordshire Police on 101, or text information to 07786 200011.
Alternatively you can contact the independent crime fighting charity Crimestoppers, anonymously, on 0800 555 111.