SINGAPORE, March 20 -- A British Airways (BA) crew member was arrested and detained in Singapore on Tuesday following allegations of sexually assaulting a female colleague during a layover in the city-state.

According to UK's The Sun, the incident reportedly occurred after a social gathering attended by BA staff between scheduled flights.

Singaporean authorities have launched an investigation, with the accused remaining in custody.

It is understood that two female BA employees connected to the case have since returned to the United Kingdom.

British Airways has dispatched senior representatives to Singapore to manage the situation and liaise with local authorities regarding the detained crew member.

"This is a matter for the police an...