Police were called to the scene, near the entrance of Soi Boon-erb, at 11:30pm.
“The man had one stab wound to the right side of his chest. There were no others signs of assault or injury,” said Lt Swanya Eidthrong of the Thung Thong Police.
Regardless, police had Mr Somparn’s body taken to Patong Hospital for doctors to confirm the cause of death, he added.
Witnesses told police that they saw a group of teenagers earlier last night hanging out in front of a rented room 50 metres away from where Mr Somparn’s body was found.
They heard a quarrel break out within the group and one man seemingly injured ran away and collapsed beside the main road, said Thung Thong Police investigator Maj Kongkrit Thongnun.
Lt Swanya added, “At this stage, we presume that the victim had an altercation with the group of teenagers and was stabbed and ran away from the group.
“We have taken three teenagers in for questioning. Hopefully, we will learn what really happened and help us determine which person stabbed Mr Somparn.”