The police officer who has been arrested for the murder of George Floyd is set to face a harsher charge, with prosecutors saying on Wednesday that the three other officers involved in the incident are set to be charged.

Derek Chauvin, a now former Minneapolis police officer is now set to face a second-degree murder charge for allegedly kneeling on Floyd's neck on 25 May.

A video of the incident went viral, and inspired protesting across the US and in other countries against police brutality against black people.

The Star Tribune reported that attorney general Keith Ellison plans to elevate the charges against Chauvin to second degree murder.

Chauvin was arrested last Friday and charged with third-degree murder and manslaughter.

Floyd was accused by the officers of trying to buy cigarettes with counterfeit money.

The other three officers Tou Thao, Alexander Kueng and Thomas Lane, Who were at the scene are expected to be charged, with aiding and abetting second-degree murder.

Thao was reportedly watching Chauvin kneeling on Floyd's throat, while Kueng apparently helped pin Floyd to the ground and Lane had allegedly pointed a gun at Floyd before he was handcuffed.