There are clear images of a person observers say lit a Donald Trump supporter on fire during Saturday’s Women’s March, but so far, the suspect has not been identified.

Video from the incident shows Trump supporters and Women’s March attendees arguing about politics, and protesters chanting “this is what democracy looks like.”

Two of the Trump supporters turned their backs to the protesters to each pose for photos with a sign critical of Trump.

A woman with braided hair wearing a red “Make America Great Again” hat posed with the sign.

After a woman with back-length hair wearing a blue Trump had did the same, a hand could be seen reaching out of the crowd with a lighter and puts it to her back.

Briefly, her hair could be seen on fire before another Trump supporter extinguished it and apologized for swatting her back.

Trump supporters then tried to determine the culprit and those near her did not help.

Observers say the hand belongs to this woman in the blue hat with white lettering:

Here she is in the crowd:

The video shows a zoomed-in, slow-motion replay of the act, clearly showing the lighter touching the woman’s hair.

So far, the woman has not been identified.

If you can help, please call the Washington, DC Metropolitan Police Department at (202) 727-9099.