Sandra Sterling, aunt of Alton Sterling, is comforted at a vigil outside the Triple S convenience store where her nephew was shot and killed.

The shooting death of Alton Sterling, 37, in Baton Rouge — the latest in a series of fatal police shootings to be caught on video — has caused outrage in the US.

A second video showing the death of Mr Sterling, who was shot several times on Tuesday while being held on the ground by police outside a Louisiana convenience store, was posted online.

Alton Sterling was shot dead by police outside a convenience store in Baton Rouge.Source:News Corp Australia

The video shows another angle and was recorded closer to the shooting by one of two white Baton Rouge police officers who were answering an emergency call about a man with a gun.

It is the second of two bystander videos that show the encounter.

In the new 38-second recording, Sterling is already on the ground, on his back as an officer kneels on the footpath to Sterling’s left.

The second video was recorded closer to the fatal shooting.Source:News Corp Australia

The other officer appears to be straddling Sterling’s legs. Sterling can be seen from the chest up and his lower legs are also visible. His left arms and hands are not visible; his right arm is by his side.

After gunshots are heard, the camera pans to the right then back to Sterling, who has a large blood stain on his chest. The officer who was on his legs now lies on the footpath above Sterling’s head, his gun pointed.

As Sterling moves his left arm toward his face and then his chest, the officer appears to remove something from one of Sterling’s right pockets.

Baton Rouge police said Sterling was armed at the time he was killed and one witness said the officer removed a gun from Sterling’s pocket.

Sterling, a 37-year-old man who sold CDs and DVDs outside the store, died of his wounds. The officers involved in the shooting -- Blane Salamoni and Howie Lake II — have been placed on administrative leave.