A free medical camp was held at Tetlipara village yesterday and free medicines were distributed by the MMU and 22 patients fell ill after consuming them, they said.
They were admitted to nearby hospitals where the condition of two of them was stated to be serious. The rest were out of danger, the sources said.
Kokrajhar Deputy Commissioner Madhab Prasad Sharma said an investigation was ordered into the incident and samples of the drugs distributed in the camp were being examined.