The president of South Africa's main trade union for platinum workers told CNBC that miners were treated like slaves, after ordering strikes that will start on Thursday.
U.S. Treasurys rose on Friday as housing and industrial production data came in largely as expected and as trading volumes were light.
U.S. stock index futures turned higher on Friday, helped by strong earnings reports from two sector bellwether stocks.
US Treasurys gained after inflation data came in as expected and amid strength in German government debt and overnight demand for safe-haven US debt.
U.S. stock index futures signaled a weaker open on Wall Street on Thursday, ahead of another wave of key fourth-quarter earnings.
U.S government debt prices moved lower on Wednesday following strong gains on Wall Street on Tuesday.
U.S. stock index futures signalled a higher opening after a strong Tuesday trading day.