Deo Kato detained by security services for three weeks after being arrested near Juba on run from South Africa to UK

A Ugandan-born Londoner on a 9,000-mile run from South Africa to London has been released from jail in South Sudan, his partner has told the Guardian.

Deo Kato had already run more than the length of Africa – the equivalent of more than 200 marathons – when he was arrested near Juba, the capital of South Sudan, on 2 June. His partner and project manager, Alice Light, had no idea where he was, only discovering he was in prison on 17 June.