Two Transit Police officers already charged with assault are facing additional charges after a criminal investigation by the Vancouver Police Department.

Constables Bruce Shipley and Alfred Wong have been charged with breach of trust, fabrication of evidence and public mischief — in addition to assault charges laid last year.

The officers allegedly physically assaulted and pepper-sprayed a 27-year-old man at the Granville SkyTrain station in February of 2012.

Both Shipley and Wong remain on administrative duty.