More than 100 humanitarian groups have asked the African Union's human rights body to ensure that South Africa take "concrete steps" to prevent further attacks on immigrants.

Seven people have died in anti-immigrant violence in South Africa this month.

The group of organizations asked the African Commission on Human and Peoples' Rights to appeal to the South African government to protect foreigners living in the country. They urged South Africa to set up special courts to deal with the cases of attacks against immigrants and foreign-owned shops.

The unrest has declined. The South African government has taken a number of steps to control the violence including introducing an app on Friday to track attacks.

In Malawi, South African-owned businesses were closed after a consumer rights group called for a boycott.