Water quality ruled out for 340 falling sick due to a mystery disease in AP's Eluru town Andhra Pradesh state is already among those worst hit by COVID-19, with over 800,000 detected cases. The health system in the state, like the rest of India, has been frayed by the virus. Midst the uncommon virus, another disease has been detected which resulted in hospitalizing over 300 people from Andra Pradesh's Eluru. Owing to a mystery disease, a total of 340 people have fallen sick in Eluru, a town in Andhra Pradesh's West Godavari district, out of which 157 people are undergoing treatment, an official said on Monday. Hundreds of people were hospitalised with complaints of multiple symptoms since Saturday night in Eluru. The cause of the sickness is yet to be ascertained. A report released by the district collector said that as many as 340 people fell sick out of which 157 are still undergoing treatment. As per the report, one person has died while 168 have been discharged. 56 doctors including specialists are providing treatment to the patients. Besides, a household health survey has been conducted in 57,863 houses to shed light on the matter. "One person has died. Patients are complaining of epilepsy, vomiting, headache, backache, general weakness and mental tension," said the collector in a report. The illness was detected Saturday evening in Eluru, an ancient city famous for its hand-woven products. Since then, patients have experienced symptoms ranging from nausea and anxiety to loss of consciousness, doctors said. A 45-year-old man who was hospitalized with symptoms similar to epilepsy and nausea died Sunday evening, the Press Trust of India news agency reported. Officials are trying to determine the cause of the illness. So far, water samples from impacted areas haven’t shown any signs of contamination, and the chief minister's office said people not linked to the municipal water supply have also fallen ill. The patients are of different ages and have tested negative for COVID-19 and other viral diseases such as dengue, chikungunya or herpes. An expert team deputed by the federal government reached the city to investigate the sudden illness Monday. State chief minister Y.S. Jagan Mohan Reddy visited a government hospital and met patients who were ill. Opposition leader N. Chandrababu Naidu demanded on Twitter an “impartial, full-fledged inquiry into the incident.” According to a press release by Andhra Pradesh Chief Minister's Office (CMO), the Chief Minister held a review meeting with district authorities at Zila Parishat conference hall. The Chief Minister enquired about the medical aid and other measures taken regarding the en mass sicknesses. "The officials said that they have conducted tests for drinking water from various parts of the town, all reports are normal. Tests for the presence of heavy metals in water, they are also at the normal level. Tests for viruses are also conducted, they are also in normal condition," the release said.