Police were informed at 8.10pm that the teen’s neck had been slashed by the impact with the wire, which was stretched across a road in Ban Map Makha village, Tambon Nong Rawiang.
The victim was identified as Suebsakul Yingsom, 18, a resident of Moo 6 village in Tambon Simoom.
He was rushed to the Por Paet Hospital in Muang district.
The wire had been bound to a power pole and pulled across the road to the fence of a house on the opposite side. The impact broke the wire and also damaged the fence.
Police believe the trap was set by a group of youths to injure their rivals.