MTN says it has closed its stores across Nigeria and some in South Africa "as a precaution" following xenophobic attacks in both countries.
"MTN Group reiterates its stand against any form of xenophobia and damage to property and remains concerned about the situation in its markets," the group said in an emailed statement.
"MTN confirms that over the last day four MTN outlets in Nigeria have been the subject of attacks and we have had to close some stores in Johannesburg. There are no reported injuries," it said.
The Nigerian shops were likely attacked in retaliation after days of riots in South Africa predominantly targeting foreign-owned businesses, including those of Nigerians living in South Africa.
"While we remain committed to providing uninterrupted services, the safety and security of our customers, staff and partners is our primary concern. MTN's stores and service centers in Nigeria have therefore been closed as a precaution," the group said.
Nigeria is MTN's biggest market according to user numbers and it had around 61.5 million customers in the country at the end of June 2019. Nigeria accounts for about a third of the company's core profit.
MTN said it is working with the relevant authorities and other stakeholders to focus on stabilizing the situation both in Nigeria and South Africa and to ensure the safety and wellbeing of all those affected by the unfortunate violence.
"We are also looking at coordinating with key stakeholders to work on medium to long term interventions to this situation.
"As a company, we remain committed to ensuring a peaceful, harmonious and respectful relationship with all our stakeholders across Africa," it added.
Nigerian president Muhammadu Buhari has reportedly sent a special envoy to meet with South African President Cyril Ramaphosa to discuss the violence.
— Paula Gilbert, Editor, Connecting Africa