MACC chief commissioner Latheefa Koya has refused to comment on whether the MACC officers said to be involved in the death of political aide Teoh Beng Hock will be investigated.

When asked about calls for an internal investigation she "As I have said, whether it is an internal investigation or an external investigation, I cannot comment."

"We are the party being investigated, we can only confirm and cooperate with the investigating (party),"

Pressed again if the MACC will probe its own officers, Latheefa maintained that she would not comment, even if it was doing so.