Burglars forced their way into a restaurant through its roof.
The break-in took place between midnight and 11am on Sunday, May 31, at Buffet 106 on Dunstable Road.
Once inside, the offenders stole cash from the till and a tip box.
Detective Constable Matt Shepherd said: “We would like to hear from anyone who has any information surrounding this incident, in which offenders targeted a closed Indian restaurant for cash, and also entered the empty flat above.
“We take all instances of burglary extremely seriously and are appealing for the public’s help in finding those responsible.”
Anyone with information contactl DC Shepherd on 101, text 07786 200 011, or alternatively contact Crimestoppers on 0800 555 111.