An electric truck which was previously damaged reignited at Nikola's Phoenix, Arizona headquarters on Sunday afternoon but there were no injuries, the company said in a statement.
Shares of the company fell 11.8% in early trading on Monday.
"At approximately 2 pm today at Nikola HQ, one of the trucks that was previously damaged reignited. No one was injured and the fire was quickly contained," the company said.
The damaged trucks were kept at the company's Phoenix site for "safety monitoring and the ongoing investigations."
Nikola last month reported a fire around its headquarters and said it suspects foul play behind the incident that affected multiple trucks but caused no injuries.
(This story has been corrected to remove reference to the company not specifying if the truck which caught fire was damaged earlier)
(Reporting by Juby Babu and Akash Sriram in Bengaluru; Editing by Nivedita Bhattacharjee and Krishna Chandra Eluri)
