President Jacob Zuma of South Africa says a government-appointed panel found evidence of "defective" police planning in an investigation of the police killings of 34 striking miners near Marikana in 2012.

Zuma said on national television Thursday night that the commission recommended that state prosecutors determine whether any police involved in the killings on Aug. 16 of that year were criminally liable. He says the commission also concluded that senior political leaders were not responsible for the killings.

The violence occurred during strikes at Lonmin PLC's platinum mine near Marikana, northwest of Johannesburg. A total of at least 44 people, including several police officers and security guards, were killed during the period of unrest.

The commission that investigated the killings was chaired by Ian Farlam, a retired judge.