South African officials say they have found the wreckage of two small planes that disappeared Sunday in the country's northeast and confirmed there were no survivors among the 13 people on board.

The officials say rescuers using helicopters and vehicles located the wreckage of the Albatross planes and the bodies of the victims Tuesday, in a mountainous area near the town of Tzaneen in Limpopo province.

The private aircraft took off from Tzaneen Sunday, flying in formation en route to an airport near Johannesburg, with two pilots and 11 passengers on board, including two children. The group was returning from a trip to the Tzaneen air show.

South African officials were investigating the cause of the accident. The two planes were formerly used by the South African air force for maritime patrols.