Meanwhile, over 100 patients, mostly from the ravaged ICU and dialysis units were shifted elsewhere for treatment.
While 20 deaths were officially confirmed, authorities of different hospitals where the injured were shifted last night put the toll at 22 after the devastating fire broke out in the Sum Hospital here.
The arrests were made shortly after Odisha government filed two FIRs alleging negligence in conduct and safety against Sum Hospital.
Those arrested were Superintendent of Sum Hospital, Pushpraj Samantsinghar, Electrical Maintenance Engineer Amulya Sahu, Fire Safety Officer Santosh Das and Junior Electrical Engineer Malay Sahu, Commissioner of Police Y B Khurania said.
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Khurania said the four officials were arrested on the basis of preliminary inquiry report of the fire officer and the FIR filed by Fire Services department at Khandagiri police station where a case in this regard has been registered today.
Meanwhile, Director General of Fire Service, Binay Behera submitted a report to the state government on the fire that ravaged parts of the private hospital last night in which 20 people died and many were injured.
Behera in his report has mentioned that the fire safety norms as per the 2013 guidelines were not followed by the hospital authorities, an official said.
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