Kenyan activists abducted after joining opposition rally in Uganda

Pair had crossed border to support presidential campaign of reggae singer Bobi Wine

Two Kenyan activists have been abducted in Uganda after attending a presidential campaign event for Bobi Wine, a reggae musician turned politician.

Heavily armed security operatives detained Bob Njagi, the chair of Free Kenya, and Nicholas Oyoo, the movement's secretary general, at a petrol station near Kampala on Wednesday afternoon.