Top stories around Africa this week

Zuma in trouble! The South African president is under pressure to quit, as the nation’s graft ombudsman ordered an investigation into possible criminal activity by government officials following a probe into their dealings with the prominent Gupta family.

Oil and politics. Oil tumbled to a one-month low after weekend talks between OPEC and other major producers failed to yield concrete details on an accord to reduce the global crude surplus.

The founder of Shoprite is tired. Shoprite Holdings Ltd. said founder Whitey Basson will retire as chief executive officer, ending a 37-year tenure that saw the South African company grow to become the continent’s biggest food retailer.

Save for the raining days. Every Small & Medium Business should be aiming to have some savings in the bank as a buffer for difficult months when sales are slow or debtors miss payments.

Watering African farmlands. A U.S. startup that sells solar-powered irrigation kits to small-scale farmers in Kenya plans to expand in East Africa, where regular droughts often result in food shortages.

Failed in hardware; gaining in software. BlackBerry announced that an agreement has been signed with Ford Motor Company for expanded use of its QNX and security software.

Making innovation work for Africa. The greatest resource in Africa is its highly creative and intelligent people.

Dry Uganda. Uganda said at least 1.3 million people in various parts of the East African nation need food aid urgently after a dry spell decimated harvests.

Zuma’s loss; Ramaphosa’s gain. South African President Jacob Zuma’s chances of serving out a second term may have dimmed after being implicated in a new graft probe and that could tip the race to succeed him in favor of his deputy Cyril Ramaphosa.