Investigations are under way into the cause of a bus crash that claimed the lives of seven people and injured 39 in Mpumalanga on Sunday night.

The bus overturned on the R532 Road between Graskop and Ohrigstad.

According to Mpumalanga road authorities all seven victims died on the scene.

The 39-injured are receiving treatment at Matibidi Hospital in Graskop and Kiaat hospital in Mbombela.

Meanwhile, another three people have died and one sustained minor injuries when a light delivery vehicle they were travelling in overturned on the R727 in the Free State.

The crash happened in the early hours of Sunday morning between Kroonstad and Bothaville.

Emergency services spokesperson, Sipho Towa says the injured person has been transported to the Nala hospital while three deceased were declared dead on the scene.