It was gathered that the manager of the hotel immediately called police after Messrs Hood and Caria both collapsed on the ground lobby after staggering out of an elevator.
Codenamed ‘Dark Room Crackdown’, the operation that led to the arrest of the six Nigerian nationals was carried out by Thai police.
The suspect was arrested alongside three accomplices; a Swiss man and two other Thai nationals.
Also citing media reports, the outlet stated that guests at the party told the police that the couple had an argument during the party.
The 35-year old Sararat Rangsiwuthaporn was arrested in Bangkok on Tuesday after an autopsy revealed that the victims died of lethal poison.
