Police said Tuesday that two men in Tokyo's Sumida Ward were taken to hospital on Monday after smoking herb-like substances.
According to police, a group of six men checked into a hotel room at around 11 p.m. on Sunday, TBS reported. The men reportedly smoked several kinds of dried herb-like substances in the hotel room, following which two of them complained of sickness. The men, both in their 30s, were taken to hospital. Police say the men were treated and later discharged.
An investigation is currently underway to establish whether any illegal substances were mixed in with the herbs, TBS reported.
Police say there have been a string of reports of ill-health and even deaths attributed to "legal herbs" as their popularity increases.© Japan Today