A 27-year-old Mililani man suffered severe head injuries last night after he was ejected from the Ford Explorer he was driving at Campbell Industrial Park.

According to police, the vehicle was traveling on Komohana Street near the Tesoro Gas Refinery when it hit a curb, veered back into traffic then rolled over several times.

The driver was taken to the Queen’s Medical Center in critical condition.

No other vehicles were involved.

Police said speed may have been a factor. It is not known if drugs or alcohol may also have been factors.