Thieves escaped with more than £10,000-worth of computer equipment during a raid on an industrial estate.
They stole scores of computers from four offices and factories at Victoria Industrial Estate in Burgess Hill.
Police said they caused a great deal of damage as they ransacked the buildings.
The thieves hit two companies in Edward Way before heading into Charles Avenue where they raided another office.
They stole more computers from an office in York Road during the overnight raid on Wednesday.
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