JOHANNESBURG — South Africa's labor strikes are spreading from its mines to the transport sector as the country's transport union says over 20,000 road freight employees are demanding a pay increase.

South African Transport and Allied Workers' Union says road freight employees are calling for a 12 percent pay increase. Employers had offered an 8.5 percent increase.

Also Tuesday, mine workers for the Anglo American Platinum mines near Rustenburg say they are meeting with management and arbitrators to discuss demands submitted last week for a gross monthly pay of 16,000 rand ($2,000).

Gaddafi Mdoda said Tuesday that strikes at Amplats mines will continue until a deal is reached.

Gold mining company Gold Fields says that nearly 25,000 mine workers are now striking at their KDC West and Beatrix mines.