Two more Isle of Wight council officers have been suspended over concerns about how a road building contract was awarded.
The Isle of Wight Council has been investigating the circumstances surrounding how a company was chosen to carry out repairs to Undercliff Drive.
Disciplinary proceedings are now underway against three council officers who are currently suspended.
The council said its latest action was a "precautionary measure".
Undercliff Drive road was badly damaged during a landslip in 2001.
The council appointed High-Point Rendel, which completed remedial work on the road and had not acted dishonestly.
But the council's deputy chief executive, the director of regeneration and development and the director of finance were suspended from duty following an independent report by a senior officer of Southampton City Council into the awarding of the contract.
Joe Duckworth, the council's chief executive, confirmed that a special disciplinary and investigatory committee had found sufficient evidence for the council to undertake disciplinary proceedings against the three officers.
In a statement, he said: "The council has also suspended two further officers, the purchasing manager and the officer who is the programme lead for compliance.
"This is a precautionary measure and is not an indication of wrongdoing.
"The council hopes to be in a position to conclude the investigation by the end of the summer."