Aviva Ireland has stepped up an investigation into internal concerns about some of its employees.   The insurance company has begun an internal audit into these concerns including examining certain emails. The company has asked its UK operation to assist it with this work which is being carried out in strict confidentiality within the company.   Individuals caught up in the examination deny any wrongdoing completely.   Detailed questions were submitted to Aviva on Monday in relation to the matter by The Currency.  In response, a spokesperson for Aviva said: “Aviva do not comment on internal matters relating to our people.”  On…