Messages of support from fans of Blood Orange's Dev Hynes are allegedly being deleted from the Lollapalooza Facebook page after the singer-songwriter and his girlfriend, Samantha Urbani, claimed to have been assaulted by the event's privately hired security guards.

Hynes, while wearing matching anti-police brutality T-shirts with his girlfriend, was performing on August 1 at the Lollapalooza Festival at Chicago's Grant Park. He delivered a speech on "police brutality and racism" right before the alleged assault.

The singer-songwriter took to Twitter:

A couple of links to articles about the alleged incident could be found in the comment sections on the Lollapalooza Facebook. But fans claimed on Twitter that their messages of support were being deleted.

In response to the allegations, Lollapalooza released the following statement:

"Late Friday night, we learned of an incident involving an artist and a security guard on site. Since then, we have been in contact with those involved and the authorities, as we work together to resolve the situation. As always, our top priority is to ensure the safety of everyone at the festival."

Hynes is asking anyone who saw the incident to contact him.