Man Sprays Paint on Kolkata Metro Door; Passengers Watch

In Kolkata, India, a person was filmed spraying black paint on a Metro train door.

The person pulled out spray paint, started painting, and then calmly left.

Passengers on the train watched without stopping the person.

The video quickly spread online, causing many people to criticize the person's actions.

Police in Kolkata are now looking into the event.

They are checking security camera footage to try and find the person, but no arrests have been made yet.

More details about the specific metro line or the person's motive are still unknown.