"Yes. Any government has the right to summon its diplomat at any time," he said.
Twala has been South Africa’s ambassador to Rwanda since 2012. He is summoned at a time when Rwanda and South Africa have shown willingness to launch talks aimed at re-establishing good relations between the two countries.
President Paul Kagame recently held a meeting with his South African counterpart, Cyril Ramaphosa when he was in Argentina on the sidelines of G20 summit.
In March President Cyril Ramaphosa said that the problem of Rwandans being denied visas to South Africa would soon become history after holding talks with President Paul Kagame. However, up to now, no signs of good relations between the two countries have bloomed.