The fire broke out at the teaching block of the hospital on Saturday.

The Crime Branch of Delhi Police will now investigate the fire incident at the All India Institute of Medical Sciences (AIIMS) in New Delhi.

Earlier on Sunday, Delhi Police registered an FIR against unknown people and began the investigation. The FIR was registered under IPC Sections 336 (endangering life or personal safety of others) and 436 (mischief by fire or explosive substance with intent to destroy house, etc.) against unknown people.

The fire broke out at the teaching block of the hospital. Though there were no casualties in the incident, the blaze forced evacuation and disrupted hospital services. It also caused extensive damages to the first, second and third floor of the PC Block.

According to the Delhi Fire Services Department (DFS), the building where the fire broke out on Saturday did not have an NOC (No Objection Certificate).

The forensic team of the Fire Department will inspect the site of fire at the hospital. The team will also submit a report to Delhi Police after which action will be taken to determine the negligence.