A suspect has surrendered to police after a shooting in an illegal pub in Hua Hin left an army sergeant major dead and another person wounded. 

Police were called to a pub in soi Hua Hin 80 about 4am on Sunday.

A 31-year-old man, identified as Sgt Maj 1st Class Rojanaphon, had been shot three times and killed, police said. 

Another customer had been shot in the arm and was taken to hospital.

Witnesses told police they heard two or three gunshots, then customers ran out of the pub. 

Police said on Monday that a suspect had surrendered to Hua Hin police station. His name was not released, but he was identified as a member of the Police Administration Inspection and Monitoring Committee.

The pub was found to be operating illegally, not having had a licence for six months.

Nearby residents are asking why police had not previously noticed the illegal pub, since it was only 500 metres from Hua Hin police station.