A Nikola electric semi-truck caught fire during a battery test outside its Phoenix headquarters.
It comes after another Nikola Tre truck caught alight this week in Tempe, Arizona.
The electric vehicle maker was testing why a battery pack on another of its trucks caught fire this week when the incident occurred.
The semi-truck was undergoing a "battery fire investigation and testing" when it caught alight in its second fire incident this week, the company told Bloomberg in an email.
In the first fire, a Tre battery-electric vehicle caught alight in Tempe, Arizona, Reuters reported.
Persons:
Nikola Tre, Nikola, Steve Girsky, Michael Lohscheller, Girsky, Nikola didn't
Organizations:
Service, Bloomberg, Reuters, Street, General Motors
Locations:
Phoenix, Tempe , Arizona, Wall, Silicon