Law enforcement officers arrested a FOX 7 Austin photographer — identified only by his first name, Carlos — covering a pro-Palestinian protest on the University of Texas at Austin campus on Wednesday alongside more than 30 other people, according to news reports and the outlet’s coverage.

Footage on social media showed officers pushing the journalist, who was carrying a camera, to the ground. FOX 7 said he was then detained and charged with criminal trespassing.

“We are very concerned by the violent arrest of a FOX 7 Austin journalist who was simply doing his job and covering matters of public interest,” said Carlos Martínez de la Serna, CPJ’s program director, in New York. “Authorities should immediately drop all charges against the photographer and ensure that law enforcement officers respect journalists and allow them to report safely and without interference.”

CPJ’s email to the Austin police public information office requesting comment did not immediately receive a response.