A commission set up by South African President Jacob Zuma to investigate the shooting at Lonmin's platinum mine where 34 striking miners were gunned down by police last month continued with its site visits on Tuesday.

The enquiry by the Marikana Commission kicked off on Monday and would have four months to complete its work before handing an interim report to Zuma.

On Tuesday, the commission inspected the area where two security guards were allegedly burnt to death.

According to reports, an employee of Lonmin took retired Judge Ian Farlan who is chairing the commission to the scene and told him the two Lonmin employees and their vehicles were burnt at the scene four days prior to the massacre.

The commission is conducting a judicial inquiry into the shooting at the North West mine that left 34 people dead and 78 wounded when police fired on striking workers.

After inspecting the scene where the guards were killed, commissioners headed to the nearby offices of the National Union of Mineworkers (NUM).

Staff at the NUM offices showed the judge broken windows, apparently pelted with stones by the protesters on August 12.

Several people, including Association of Mineworkers and Construction Union (Amcu) president Joseph Mathunjwa, followed the commission members.

The visit to the office was part of the in loco (place) inspection by the commission. The commission would also be visiting the Wonderkop mining hostels and two informal settlements in the area.

The hearings are aimed at determining the roles played by platinum mining company Lonmin, the police, and rival unions miners' unions NUM and Amcu in the massacre.

Meanwhile, members of the opposition Pan Africanist Congress (PAC) joined the protest at Nkaneng in Wonderkop on the sidelines of the Marikana inquiry.

The PAC said they were concerned that the police were not arrested, instead they arrested people who were injured.

But the commission has already come under fire from certain legal experts.

Legal scholar, Shadrack Gutto told the SABC that in order to help families and those affected by the massacre, a reconciliation commission must be established.

He argued that the judicial commission of inquiry is only limited to a fact-finding mission.