Trucks worth thousands of pounds have been destroyed after they were set on fire.

Hertfordshire Constabulary says the arson attack occurred at the CEMEX site - known as Hatfield quarry - in Oaklands Lane, Smallford, at around 11pm on Sunday, February 7.

Two large trucks, worth in excess of £100,000 in total, were destroyed after being set alight.

Police have now released an image of a person they would like to identify as they are believed to have been in the area around the time and may have information which could assist the investigation.

Investigator Jacob Smith, who is investigating, said: “I fully appreciate that the quality of this image is very poor. However, if you were in the area around the time, you may have seen someone wearing similar clothing, so it’s worth issuing, to ensure we are doing everything we can to properly investigate this for the victim.

“If you recognise the person pictured, or saw anything suspicious in the area around the time, please get in touch. We’d also ask anyone who may have been driving in the area to review dash cam footage, in case you have captured something of note.”

Anyone with information is asked to email Jacob.Smith@herts.pnn.police.uk.

Information can also be reported online at herts.police.uk/report or by calling 101 quoting crime reference 41/9323/21.