Diesel, bags of scrap copper and brass were stolen in an overnight raid in a village near Fakenham.
Police are appealing for information about the theft, which took place at a site in Helhoughton Road, Hempton, overnight between Wednesday, February 27 and Thursday, February 28.
Officers are keen to speak to anyone that may have witnessed suspicious activity in the area as well as anyone who may have been offered the stolen items for sale.
Anyone with information should contact PC Christine Copeman at Fakenham Police Station on 101 or call Crimestoppers anonymously on 0800 555 111.
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