The company says the effects have been minimised as traffic has been rerouted, while engineers investigate the outage.
“We are running on alternative WACS capacity,” MWeb said in a statement on its Facebook page. “Please note that we are not at full capacity and shaping on non-priority traffic will be in effect.”
The Seacom website reported a “multiple terrestrial outage” on both its Egypt routes at 11:59 GMT.
“Repair teams have been mobilized,” the company said. “ETR [estimated time to repair] will be published shortly. This is affecting our European routes. Updates will follow in 30 minutes.”