Northallerton police are investigating a burglary from a water treatment plant in the area.
It happened at the Romanby Water Treatment Plant on Wooden Hill Lane, in Romanby, over the weekend of Friday, August 3 to Monday, August 6.
The thieves stole a laptop computer, a digital camera, a mobile phone as well as several hundred pounds of money.
PC Nick Hill, of Northallerton Safer Neighbourhood Team, said: “If you can help with this investigation please contact the police or Crimestoppers straight away.”
Anyone who can assist with this investigation is asked to contact Northallerton police on 101, select option 2 and ask for Nick Hill.
Alternatively, people with information can telephone Crimestoppers anonymously on 0800 555 111 quoting reference number 12120128804.