WATCH: Guard at Donald Trump rally choke-slams photographer to the floor

THIS is the shocking moment a security chief at a Donald Trump rally choke-slams a photographer and yanks him to the floor.

The dramatic 30-second clip shows award winning snapper Chris Morris being hurled to the ground before he is led away from the billionaire’s speech in Radford, Virginia.

Protesters with Black Lives Matter were chanting in opposition to the business mogul’s refusal to distance himself from the support of former Ku Klux Klan leader David Duke.

   TRUMP: The Republican leader was at a rally when the fracas happened

They had been venting their fury at the Republican when the altercation took place at Virginia’s Radford University.

But Trump later distanced himself from Duke’s support.

   FIGHT: Trump tells security to 'get them out of here' in regards to protesters at the rally

The clip appears to show the security agent grabbing the Time magazine photographer by the neck and slamming him to the floor.

Mr Morris then appears to kick the agent while on the floor before briefly grabbing the neck of the guard before the pair were separated.

The stunned snapper said: “I stepped 18 inches out of the pen and he grabbed me by the neck and started choking me and then he slammed me into the ground.”

In response to the comments, a Secret Service spokesman said: "The Secret Service is aware of an incident involving an employee of the Secret Service that occurred earlier today in Radford.”

   CHOKE: The security guard is seen thrown to the floor

“At this time, our local field office is working with their law enforcement partners to determine the exact circumstances that led up to this incident.”

A Time spokesperson added: "We are relieved that Chris is feeling OK, and we expect him to be back at work soon.”

   KICKED OUT: Chris Morris is then kicked out after the altercation

Trump’s rallies restrict photographers to stay inside a gated area with a high security presence.

The outspoken candidate is set to beat rival Ted Cruz on Super Tuesday to set up commanding position in the race for the Republic Presidential nomination.