Police said the men made off towards the River Almond
Detectives are hunting two men who stole a high value of metal from a work site in West Lothian.
The combined value of the stolen materials and damage caused to property was estimated to be about £10,000.
The two men used a power saw to cut away a stainless steel storm screen at the Broxborn Stormworks near Newbridge at about 1040 BST on Tuesday morning.
They made off west towards the River Almond after they were disturbed by a workman on the site.
The first suspect was described as white and wearing a dirty white T-shirt and jeans. The second suspect was described as white, in his 20s and wearing dark clothing.
A Lothian and Borders Police spokesman said: "This site has been targeted to obtain scrap metal for sale resulting in significant and expensive damage.
"Anyone who believes they have seen the males responsible and can assist us in locating them is asked to contact police immediately.
"Similarly, any scrap metal buyers who come across the stolen storm screen are also asked to come forward to help with our inquiries."