Emergency services are tackling a huge fire in St Albans that sent thick smoke billowing into the sky and across the city.

The blaze broke out at around 11am on an industrial estate close to the city centre off London Road, by the junction with Orient Close. 

A fire service spokesperson confirmed it started in a car workshop that was totally ablaze when crews arrived.

Work is ongoing to limit the spread to neighbouring commercial properties.

St Albans & Harpenden Review: The fire at an industrial estate off London Road. Credit: Twitter/@ladydoingitallThe fire at an industrial estate off London Road. Credit: Twitter/@ladydoingitall

Hertfordshire Fire & Rescue says at least 11 fire engines and its aerial ladder platform are at the scene, with at least 50 firefighters on-site.

There are no reports of injuries on social media but emergency services have been contacted for confirmation.

The area has been evacuated and police have put a large cordon in place in London Road between Cunningham Avenue and Orient Close.

Social media has been flooded with images and videos of smoke across the sky with people in London Colney and Chiswell Green spotting smoke.

The fire has also required firefighters from across Hertfordshire to attend.

Assistant chief fire officer Simon Tuhill tweeted: “Fire Crews are dealing with a significant fire on London Road in St Albans. Please stay clear of the incident and keep your doors and windows closed if you're in the vicinity."

Hertfordshire Constabulary added: “We are currently assisting the fire service at the scene of a fire in St Albans. Closures are in place on surrounding roads and people are please asked to avoid the area.”