United States officials have warned South Africa’s government of a possible terrorist attack at events with large gatherings — days after alerting Nigeria of a similar attack.

The U.S. embassy in South Africa posted an alert on its website today, warning of possible attacks in Johannesburg.

The embassy warned citizens to avoid the Sandton area of Johannesburg this coming weekend.

The U.S. embassy alert said:

The U.S. government has received information that terrorists may be planning to conduct an attack targeting large gatherings of people at an unspecified location in the greater Sandton area of Johannesburg, South Africa, on 29 October 2022. There is no further information regarding the timing, method, or target of the potential attack. The U.S. Embassy has advised staff to avoid crowds of people and other large public gatherings in the greater Sandton area of Johannesburg during the weekend of 29-30 October 2022.

The U.S. issued an alert on Sunday about possible terror threats in Nigeria, particularly the capital of Abuja, advising embassy staff to evacuate and American citizens to leave.

U.S. officials said terrorists could target government buildings, houses of worship, schools and other areas where people gather.

More about the terrorist attack alerts can be found here.