Cameroon Olympics officials say seven competitors who have left London's athletes' village may be seeking new homes and sporting opportunities outside their African nation.
Press attache Emmanuel Tataw said the seven Olympians have valid UK visas allowing them to stay in the country for six months.
He noted that other Cameroon athletes had left Olympic squads during international sports events held in Melbourne and Athens and "most of time the time they don't come back."
Cameroon sent "about 33" athletes to the London games, and more than half of them, who were on the women's soccer team, left London after they were eliminated.
The missing athletes include five boxers, a swimmer and a soccer player, all of whom completed their events before departing, Tataw said.
Cameroon, a predominantly French-speaking nation of 20 million in west central Africa, is among the poorest nations on earth.
London Olympic officials said on Wednesday that Cameroon officials were seeking help in locating the athletes, but stressed they had not breached the terms of their visas and were not violating any immigration laws.