Chef de mission Kaysee Teeroovengadum stepped down from his role at the Gold Coast Games after police received a complaint that he had assaulted javelin thrower Jessika Selma Rosun, the Mauritius sports ministry told Reuters on Wednesday.
"Police will allege the 52-year-old Mauritian man assaulted a 26-year-old woman in Southport on March 29," police said in a statement on Friday.
"The matter was reported to police who charged the man with one count of sexual assault today."
The man was due to appear in the Southport Magistrates Court on April 17, police added.
The Mauritius sports ministry said Teeroovengadum had agreed to resign his role and had departed the athletes' village but remained in the Gold Coast because of the police investigation.
Athlete in 'serious' condition after contracting malaria
An athlete at the Commonwealth Games is in a 'serious' condition at a Gold Coast hospital after contracting malaria, organisers said on Friday.
The Games' organising committee (GOLDOC) said the 23-year-old was admitted to Gold Coast University Hospital (GCUH) on Thursday.
"The patient received immediate treatment for malaria on arrival at GCUH," GOLDOC said in a statement.
"The patient remains admitted to GCUH in a serious condition and continues to be closely monitored."
The committee gave no further details, citing patient confidentiality.
The mosquito-borne disease infects around 216 million people a year worldwide, killing around half a million of them. Most deaths are among babies and young children in the poorest parts of Africa.
Mainland Australia has been malaria-free for decades.
"We have robust treatments for malaria in this country," GOLDOC said.
A number of athletes have fallen sick at the Games, including three from the same team who were quarantined for 48 hours after contracting influenza earlier in the week.
The New Zealand women's rugby sevens team was placed in isolation after one of their players was diagnosed with mumps.
