Rangers manager Ally McCoist has said that he is "shocked" after four men were detained by police investigating the club's takeover in 2011.

David Whitehouse, Paul Clark and David Grier, who are all employees of former Rangers administrators Duff and Phelps, are reported to have been held on Friday along with lawyer Gary Withey, who was the club's company secretary after the takeover.

Police Scotland arrested the men as a result of an ongoing investigation into the "alleged fraudulent acquisition of Rangers Football Club."

McCoist told reporters: "Obviously I can't or wouldn't comment on a current police matter, but I would have to say I'm shocked.

"I can't pre-judge what is going to happen. Our concern has always been for the staff and supporters.

"What's happened to us in the last two-and-a-half, three years has been very tough, particularly on the staff and supporters. We just want to continue with our attempts to get the club back to where we feel we belong."

Craig Whyte took control of Rangers in May 2011, but the club went into administration in February 2012.