But he emphasized that the athletes had not broken any laws: "These athletes are guests here in Australia".
Three weightlifters and two boxers have not been seen since Tuesday, while another three have since gone missing, including boxer Christelle Ndiang, who disappeared after losing her bout to Australian Skye Nicholson on Tuesday.
On the Gold Coast this week, Cameroon athletes were the first to depart the Athletes' Village without explanation, with eight members of the African nation's delegation walking out in the middle of the night, two of whom were still due to compete.
SOUTHERN DOWNS mayor Tracy Dobie has expressed her sympathy for Cameroon officials after one-third of their athletes were reported missing from the Commonwealth Games Village.
They have reportedly since been joined by athletes from Rwanda, Sierra Leone and Uganda, with Commonwealth Games Federation president David Grevemberg revealing the athletes' whereabouts were unknown as of Thursday.
He said the missing athletes were part of a team Whatsapp group, but only one of them got in touch because she had left behind her credit card and money.
"That includes Cameroon and any other athletes". Cameroon brought 42 athletes to the Gold Coast Games.
"It was great for everybody and they did seem to appreciate the effort that the council and community went to for them", he said.More news: Kyle Larson sets pace during Saturday's first Cup practice in Bristol
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Nyika, who had won the past three fights between the pair, maintained his supremacy to add to the gold medal he won in the 81kg division at the 2014 Glasgow Games.
"Right now, we are anxious about the safety and welfare of the athletes and we are taking this very seriously and monitoring the situation with team Cameroon".
In 2012, seven athletes from Cameroon were reported missing from the London Olympic Games.
Cameroon weightlifters Francois Etoundi and Simplice Ribouem both received refugee status, and were in the 2018 Australian team.
An Australian Border Force spokesperson told SBS News the Department does not comment on individual cases, but visitors to Australia are free to enjoy their stay as long as they meet their visa requirements.
Although her journey is over, Robertson still walks away with a bronze medal on her debut at the Games.
Commonwealth Games organisers called for competitors to respect the law, mindful of the fact that more than 100 athletes overstayed their visas at the 2000 Sydney Olympics.