Seven athletes from Cameroon have gone missing from the athletes' village, officials have said.
The five boxers, swimmer and a footballer have all disappeared from the athletes' village at the Olympic Park in Stratford, east London, David Ojong, the head of mission for Team Cameroon, told reporters.
All seven athletes would have had visas allowing them to remain in the UK until November and it is understood that none of the seven have claimed asylum.
David Ojong told Cameroonian media that of 60 athletes and officials living in the village, 28 have gone home, 24 were still in the village and seven have disappeared.
The missing athletes include all five of the team's boxers - Thomas Essomba, who competed in the 49kg category, Christian Donfack Adjoufack in the 80kg, Abdon Mewoli in the 60kg, Blaise Yepmou Mendouo in the plus 91kg and Serge Abomo in the 64kg - who disappeared over the weekend.
The others were Drusille Ngako, 25, a stand-by goalkeeper for Cameroon's women's team, and swimmer Paul Ekane Edingue, 21.