Thirty people have been sentenced to death in the Democratic Republic of Congo for their role in anti-police violence marking the end of Ramadan in the capital Kinshasa.

The head of Ethiopia's election board said it would be impossible to hold a planned 5 June vote due to mounting logistical issues and postponed it without giving a new date.

Zimbabwe's High Court has ruled that President Emmerson Mnangagwa's decision to extend the tenure of the country's chief justice by another five years was illegal.

Algerian police prevented a pro-democracy protest rally from taking place in the capital Algiers on Friday and detained several people including journalists, among them an AFP photographer, AFP correspondents said.

Nigerian President Muhammadu Buhari's son-in-law is wanted as part of an investigation into an alleged $65-million housing fraud, the country's anti-graft agency said.

Ivory Coast Prime Minister Patrick Achi said he was in "good shape" after returning home to Abidjan on Friday, following reported medical treatment in France.

Ethiopia has revoked the press credentials of a foreign journalist working for the New York Times, according to the newspaper and an Ethiopian official.

Police fired teargas to disperse a crowd of more than 200 people protesting in Kenya's capital Nairobi on Thursday against the Israeli bombing of the Palestinian territory of Gaza.

At weekends, Egyptian President Abdel Fattah al-Sisi is often driven out to a road construction site in Cairo where he is pictured surveying stretches of recently poured asphalt and being briefed by workers.

Sasol agreed to sell a 30% stake in a natural gas pipeline running from Mozambique to South Africa for as much as R5.1 billion as it shores up funds to pay down debt.

Kenya's High Court on Thursday ruled that President Uhuru Kenyatta's planned constitutional reforms are illegal and that he is liable to legal action over the move which has raised tensions in recent months.

Whites were given preferential treatment for evacuation in a March air rescue when Mozambique's Palma town was raided by Islamic State-linked fighters, rights group Amnesty International alleged Thursday.

A police officer in Congo's capital Kinshasa was beaten to death and 46 others were wounded as rival Muslim groups clashed during Eid celebrations on Thursday.

Ivory Coast Prime Minister Patrick Achi, 65, has been admitted to hospital in Paris, where he was being treated for severe fatigue accrued since his appointment in March, two sources close to him said.

Zimbabwe's President Emmerson Mnangagwa has extended the tenure of the chief justice by five years following contentious changes to the constitution that allowed for the extension and are being challenged in court by lawyers.

Nearly two dozen women in DR Congo have come forward with allegations of sexual abuse by aid workers during an Ebola outbreak, adding to a scandal that broke last year, a report said on Wednesday.

Five people were killed on Wednesday in an attack on a village in the western Tillaberi region of Niger, near the border with Mali, as the country celebrated the Eid al-Fitr holiday marking the end of the Muslim fasting month of Ramadan.

Uganda's Yoweri Museveni was sworn in Wednesday for his sixth term as president, as police surrounded the home of his main opposition rival who decried the inauguration as a "sham".

Nigerian troops repelled an incursion by Boko Haram jihadists into the northeastern city of Maiduguri late on Tuesday, killing five insurgents, military sources and residents told AFP.

Egypt's prosecutor-general on Tuesday ordered the release of a group of young men accused of raping a woman in a Cairo luxury hotel in 2014 in after allegations surfaced online last year.