Peter Obi and Rabiu Kwankwaso, who came third and fourth respectively in the last elections, switch parties.

The attack comes as the Kremlin prepares to hold a scaled-back military parade on Saturday.

There has been a wave of anti-migrant protests in South Africa, some of which have turned violent.

The long-time champion of Trump and former New York mayor is in hospital, according to his spokesman.

Two European summits are being held in a country long considered Russia's closest ally in the region.

Local politicians say the move is in line with the Dutch capital's environmental targets.

Police suspect the human remains belong to a businessman swept away by floodwater last week.

President Zelensky has been visiting the Gulf to demonstrate his country's military nous.

Sahand tells the BBC World Service he sends satellite internet terminals into Iran to help show "the real picture".