Sadar Police Station OC Elias Hossain said five of the unconscious were admitted to Magura Sadar Hospital.
They are - Suruj Hossain (70), Jahangir Ali Kibria (30), Minhaj Uddin, 23, Raihan (20) and Saiful Munna (20).
Saidul Islam, a member of the Tabligh Jamaat, who came to Chilla at Marcus Mosque in the district town, said a group of 16 people from Kakrail Mosque of Dhaka came to Marcus Mosque in the 40-day Chilla on Friday night.
"After eating the dinner, the five friends of Furro Juhu Khwan, a new companion named Junaid Ahmed, passed around 11pm. We got to eat Sehri and we see these five unconscious. And Junaid can not be found. "
Junayed's house told Sylhet, but could not tell his address.
His allegations were that he had lost millions of money including cash and mobile phones.
OC Ilias said, searching for possible arrests of Junaid was being investigated everywhere