Johannesburg - Police were on Friday still searching for two men who were part of a group accused of plotting to overthrow DRC President Joseph Kabila.
“Indications are they might still be in the country; law enforcement authorities are searching for them,” said spokesman Brigadier Lindela Mashigo.
The two are General William Amuri Yakutumbu and Etienne Kabila, reported to be Democratic Republic of Congo President Joseph Kabila's half-brother.
A group of 19 alleged rebels from the DRC, which included a United States citizen, appeared in the Pretoria Regional Court on Thursday to face charges under the Foreign Military Assistance Act.
They were arrested in Limpopo on Tuesday after months of investigation.
The men were not asked to enter pleas and were ordered to return to court on February 14.
The DRC was recently attacked by militants thought to have the backing of neighbouring Rwanda.
The DRC's mineral-rich east has been unstable and often engulfed by fighting since a 1994 genocide in Rwanda.