A 29-year-old driver and his 26-year-old handy boy were found dead inside a fuel tanker they were travelling in, at Sorchin in Phuentshogling, yesterday.
The police and medical team ruled out foul play. No injuries were found on the bodies of both the deceased.
The cause of the death is not known.
The mishap reportedly took place when they were returning from Thimphu to Phuentshogling.
The case is under investigation.