A large window was smashed at a Sudbury estate agents on Sunday.
The window, belonging to Sworders in Gainsborough Street, was broken at around 5.30pm.
Two boys, aged 15 or 16, were seen running from the area. Both were white, of slim build, around 5ft 9in tall and with short fair hair. One wore a very long white T-shirt and multi-coloured shorts, the other wore a dark coloured T-shirt.
Anyone with information should call Pc Daniel Steel at Sudbury Police on 101 or Crimestoppers on 0800 555111.