Burma said it was informed that the crash at about 2am Saturday happened after the teenager crashed his speeding motorcycle into an electricity pole. He is now being treated in a private hospital in Muang district.
The accident took place a few hours before two bombs exploded at a golf course adjoining the hotel in Tachilek, which is opposite Mae Sai. The course was hosting a golf tournament held to mark Burma’s Armed Forces Day.
Four Burmese were injured in the blast and are being treated in a hospital in Chiang Rai.
Burma also sought help tightening security at the border after the bombs to prevent people with ill intent entering Burma.