Hours after coach Dean Cox expressed his disappointment at the situation, the Swans confirmed interviews with players were ongoing across the course of Tuesday.
Victoria Police attended the Pullman Hotel in East Melbourne on Monday and said they were investigating a report of sexual assault in the early hours of the morning.
Sydney stayed there on Sunday night after the club's 36-point win over Essendon at the MCG, which meant they locked in second spot on the AFL ladder ahead of the looming finals.
Chad Warner, Isaac Heeney, James Jordon and Riley Bice have been widely named in media reports as the players involved in the inquiry, although none have publicly been accused of wrongdoing.
With the Sydney board set to meet within 24 hours, Cox said the club was working to uncover the facts.
"Obviously extremely disappointed with what's happened, and understand the questions and we'll update as we gather more information," Cox said on Tuesday morning.
Asked if sanctions should be expected, Cox added: "We're working our way through everything with the AFL and the relevant parties and we'll update when we get more information."
Players, including captain Callum Mills, were stopped by media as they entered Sydney's training facility across Tuesday morning.
"It's an investigation ongoing and we don't have the facts yet, so can't really comment," Mills said.
"We don't know the facts. It's as simple as that."
Mills wouldn't comment when asked if he'd spoken to the players involved, who drove back from Melbourne on Monday night.
Given player interviews could drag into late on Tuesday night and the investigation process could continue for several days, the Swans' hierarchy are unlikely to front the media again until at least Wednesday.
No players have been charged in regard to the ongoing investigation.
"Police spoke to a number of people at the hotel, however no one has been arrested or formally interviewed at this time," Victoria Police said in a statement on Tuesday.
On Monday, Swans chief executive Matthew Pavlich said the club was working with relevant authorities.
"We're still piecing together exactly what's transpired here and have our own set of internal inquiries ongoing," Pavlich said.
"But, safe to say that we're extremely shocked and disappointed that this has taken place and that the players have found themselves in this situation."
No senior figures at the AFL have publicly commented on the matter, though its integrity unit appears certain to become involved.
Unlike the NRL, the AFL does not have a strict no-fault stand-down policy on players charged with serious offences such as sexual assault.
But the AFL stood down Geelong's Tanner Bruhn, who ultimately had sexual assault charges dropped, for the entire 2025 season while his case was in court.
Bruhn, who always maintained his innocence, returned to play this year.
Ahead of their last regular-season game, against North Melbourne at the SCG on Sunday, Sydney will name an extended squad on Thursday evening.
That will cut that back to 23 players plus three emergencies on Friday.
Sydney then have a week off during the wildcard round before a home qualifying final.
AAP has contacted the AFL for comment.
1800 RESPECT (1800 737 732)
National Sexual Abuse and Redress Support Service 1800 211 028