Steven Gerrard has named Bongani Zungu, Nathan Patterson, Calvin Bassey, Dapo Mebude and Brian Kinnear as the five Rangers players who breached COVID-19 regulations by attending a house party just days before their Europa League last 32 tie against Royal Antwerp.
The five players were fined by police after the party in Glasgow's West End was broken up in the early hours of Sunday morning.
Gerrard confirmed the group have all been removed from the squad and are currently self-isolating.
"First and foremost we have to acknowledge that five of our players have been involved in a breach of the Covid regulations. Which, from the top of the club to the bottom, we're all really disappointed in," Gerrard told Rangers TV.
"That will be dealt with internally, the players will be fined and we are in dialogue with the SFA and the Government moving forward to find the solution in terms of those boys.
"They've been removed from the club and the squad for now on a short-term basis while they isolate and I'll be sitting down with those boys face to face once we're allowed to do so. We'll certainly move forward from it, we're at a critical stage in terms of the games coming up and where we are as a club.
"It won't affect us as a group, I've been absolutely delighted with the group in terms of their application, I feel personally let down by recent events but I'm trying to move forward and focus on the important thing which is preparing for a huge game against Antwerp."
Asked if he could identify those involved, the Rangers boss revealed that three first-team players and two academy members had been present at the party.
"Bongani Zungu is involved, Nathan Patterson, Calvin Bassey," he said. "Dapo (Mebude) who is part of the academy and is on loan at Queen of the South at the moment, and a young goalie who is in the academy but has spent some time in the first team at the moment, Brian Kinnear."