Two English teachers have been found dead sitting side-by-side in the living room of an apartment on the outskirts of Bangkok, according to Thai police.
The men - an American aged 40 and a 35-year-old from Britain - were discovered in the early hours of Saturday morning, according to Lieutenant Colonel Chamnong Kongtapan, chief investigator at the local police station in Pathum Thani province.
Detectives investigating the cause of death found an empty medicine bottle in the room from a government-run drug rehabilitation centre.
"The name of the British man was on the bottle but we don't know yet what kind of drug (was) inside," he said.
He added that there was no sign of injuries on the men's bodies, or that a struggle had taken place.