The U.S. Navy has announced that it is investigating an event held by the Navy SEAL Museum in Fort Pierce, Florida, last year where a man was seen wearing a Colin Kaepernick jersey while being attacked by dogs and arrested by soldiers as part of a demonstration.

A video of the January 2019 fundraiser was posted to Instagram last year and deleted, but it racked up nearly 6 million views when it was reposted on Twitter this weekend by filmmaker Billy Corben.