ed foreign nationals, as anti-immi- eign nationals, including Nigerians. The demonstrations marked the expiration of an unofficial June 30 deadline issued by citizen-led groups calling on undocumented migrants to leave South Africa. The campaign has already trig- gered the departure of thousands of foreign nationals and has been linked to at least four deaths. Police mounted a heavy securi- ty operation across the country to prevent violence, deploying officers in riot gear to monitor the protests organised by groups including March and March and Operation Dudula. In Johannesburg, South Africa…