Police have appealed for witnesses after a car was set on fire outside a house in Brierfield.
Police said they were called out to the incident in Quaker Rise by the fire service at approximately 8-25pm on Saturday.
A BMW One Series was set on fire deliberately, according to the police, and the fire service extinguished the blazing vehicle.
Sgt Shaun Pearson, of Nelson police, said: "The vehicle was deliberately set on fire and an investigation is ongoing.
"We would be interested to hear from anybody who saw a dark coloured Renault Megane or a dark VW Golf in the area a short time after the incident."
Call police on 101 with information or alternatively contact Crimestoppers anonymously on 0800 555111.