Cyanide poisoning was likely the cause of the deaths of six foreigners whose bodies were found in a room in a plush Bangkok hotel, with the suspected killer among the dead, Thai police said on Wednesd

Six people, reportedly including 4 U.S. nationals, found dead inside a luxury Bangkok hotel are said to have been foaming at the mouth.

The six bodies, including those of two U.S. citizens, found Tuesday in a Thailand hotel room died after drinking from cups laced with cyanide in an incident possibly tied to a financial dispute or bad investment.