US government facilities in South Africa remained closed for a second day Wednesday, after the State Department said it had received a "credible" threat against the embassy.
The US embassy in Pretoria, consulates in Johannesburg, Cape Town and Durban, as well as aid and development offices have been closed since Tuesday due to the threat, which neither the embassy nor South African officials will discuss.
US facilities will stay closed at least until Friday, due to a public holiday on Thursday in South Africa.
South Africa's national police chief said on Tuesday the situation was "under control."
On August 7, 1998, suicide bombers targeted the US embassies in Kenya and Tanzania in one of the most devastating attacks carried out by Al-Qaeda prior to the September 11, 2001, attacks.
A total of 213 people, including 12 Americans and 34 local embassy staff, died in the Nairobi bombing. Another 11 died in the Tanzania blast.
The blasts sparked an enormous effort to bolster security at US embassies around the world, and particularly across Africa.