Photo/Illutration Festival organizers in western Tokyo announced on their website that six people fell sick after eating gummy candies on Nov. 4.

Six people fell ill after eating gummy candies apparently containing cannabis at a festival in Koganei in western Tokyo, police said on Nov. 15.

The symptoms of the six, in their teens to 50s, included vomiting. Five of them were taken to a hospital but later recovered and were discharged.

A man in his 40s offered the candies to the six at the festival on Nov. 4, believing they would make people “feel good,” according to police.

Investigators are analyzing the ingredients of the candies and questioning the man on how he obtained them.

The festival drew around 4,000 people to Musashino Park.

On the previous day, four people were taken to a hospital after consuming similar gummies in Tokyo’s Sumida Ward.

Emergency crews were called around 3 p.m. to Oshiage Station on the Tokyo Metro’s Hanzomon Line after the four people, all in their 20s, fell sick on a subway train.

Police believe the two incidents are not related.

Recreational use of marijuana is strictly prohibited in Japan, but some food items, oils, creams and other products containing legal cannabis ingredients are marketed.