Firefighters are tackling a huge blaze at a Livingston factory where hazardous material is believed to have caught on fire.
More than 40 firefighters are battling the fire which broke out around 2pm on Friday at Wyman Gordon at Houston Industrial Estate in Livingston.
Specialist chemical support crews arrived on the scene to help tackle the flames. Due to the nature of the blaze, crews were unable to use water to extinguish the fire.
Wyman Gordon fabricates products for the aerospace and energy markets.
It is believed that fire started when an employee was operating a grinder near flammable materials.
Reports on social media suggest that nearby businesses and residents were evacuated by emergency services.
Police cordoned off Houston Road and closed all roads within Houston Industrial Estate.
A Police Scotland spokesman said: “A number of nearby premises have been evacuated and road closures are in place.
“The public are advised to avoid the area and thanked for their patience and co-operation with emergency services at this time.”
A Scottish Fire and Rescue Service spokesman said: “Specialist chemical support units are in attendance and crews wearing breathing apparatus are using high-powered hoses to tackle the flames.”