Toyota Motor Corp. halted production Wednesday at its Durban plant in South Africa after workers at a factory that makes seats went on strike, demanding a bonus.

"Production at our Durban manufacturing plant was halted this morning," Leo Kok, a spokesman for Toyota South Africa, said by phone from Johannesburg. "We will lose 700 units per day."

Workers at Toyota Boshoku Corp.'s car seat factory in the city are demanding a 1,500 rand ($173) bonus to return to work, Mbuso Ngubane, regional secretary of the National Union of Metalworkers of South Africa, said by phone. Charmaine Lottering of Toyota Boshoku South Africa said 480 employees stopped work.

Toyota South Africa raised wages at its Durban plant to end a 3½-day strike that started Oct. 1, Kok said.

Labor unrest at South African mines has now apparently spread to the transport industry.