THE GMB union has launched an investigation into allegations made against Tim Roache who resigned as general secretary this week.

On Tuesday, Mr Roache stood down citing ill health. He has suffered from myalgic encephalomyelitis (ME) for years.

His condition has previously resulted in two years’ sickness absence from work, according to the GMB’s statement.

Mr Roache was signed off by doctors earlier this week and has quit his role “indicating that he does not feel mentally or physically able to continue to lead our union,” the statement adds.

GMB confirmed that it received an anonymous letter last Wednesday that made a number of allegations about his conduct while in office.

According to the BBC, the letter was sent to the union’s president Barbara Plant from a group of individuals calling themselves “concerned GMB staff and members,” who wanted Mr Roache to be suspended.

GMB’s statement also says: “An investigation has been launched and it is not appropriate to comment further pending the outcome of that investigation.

“Complaints which are brought to our attention will be dealt with appropriately in line with our policies and procedures and with appropriate regard to fairness and sensitivity.”

GMB has announced that John Phillips, its regional secretary for Wales and the South West, has been appointed acting general secretary.

The Labour-affiliated union said that it hopes to hold a leadership election as “soon as practically possible.”