The auto rickshaw was reportedly plying on NH2 road of Agra when the blast took place. (representational image)Twitter

At least two people were killed and three sustained injuries during an explosion inside an auto rickshaw in Agra, Uttar Pradesh, on Wednesday, said reports.

The auto rickshaw was reportedly plying on NH2 road of Agra when the blast took place. The cause of the explosion is yet to be ascertained.

The condition of the injured is said to be critical, reports added.