Emergency services believe a derelict building near Watford's Dome Roundabout was set on fire deliberately.

Four crews from Watford, Garston and Rickmansworth attended the blaze yesterday (Sunday) at 6.50pm in Cow Lane.

Video footage shows significant amounts of rising smoke from the area with multiple emergency service sirens going off in the background.

The building, which a fire service spokesperson said was 15m by 20m, was alight when crews arrived.

They said two breathing apparatus, a hose reel and covering jet were used to put it out by 7.32pm.

No one is thought to have been injured but it is being treated as deliberate.

A Herts Police spokesperson confirmed no arrests have been made but an investigation has been launched.

They said: "Police were called at 7pm last night (Sunday 10 July) to assist the fire and rescue service at the scene of a building fire in Cow Lane, Watford.

"Road closures were put in place while the incident was dealt with.

"The fire is being treated as suspected arson and an investigation is being carried out by police."

Information can be reported via 101 quoting reference 41/55136/22.

Have you got a story for us? You can contact us here.

Follow us on FacebookTwitter and Instagram to keep up with all the latest news.

To receive breaking news alerts or newsletters sign up here.

Check out our Watford crime and court Facebook page here.