A pepper ball round thwacks my colleague in the side of the head as we run away from police.

A cloud of the irritant fills the air, coating my goggles, followed by a crackle and the glare of flash bangs.

“Go, go, go!” he shouts.

Police officers are firing into the crowd protesting against Donald Trump’s immigration crackdown in downtown Los Angeles.

Once again, reporters appear to be in the crosshairs.

Jon Putman, The Telegraph’s photographer, took a blow to the head, one of many journalists hit or detained since protests broke out on Friday.

Jon was struck in the ear, narrowly avoiding a serious injury.

“If it hit me right in the head it would have knocked me down and I would have been out of commission,” he said.