An official on Wednesday said that the police registered a criminal case against unidentified persons after an iron rod fell from a metro rail construction site in Bhiwandi on a moving autorickshaw and pierced the head of a passenger, reported news agency PTI.

The passenger, identified as Sonuali Shaikh, was seriously injured in the incident on Tuesday, reported PTI.

The accident occurred around 2 pm in Bhiwandi city, where the first phase of the Thane-Bhiwandi Metro Line is under construction, an official said, reported PTI.