Updated

The Royal Canadian Mounted Police have laid 31 charges of fraud, breach of trust and bribery against a suspended senator who is accused of receiving $90,000 from Prime Minister Stephen Harper's former chief of staff.

RCMP Assistant Commissioner Gilles Michaud said Thursday the charges against Sen. Mike Duffy involve his claims for living expenses and travel expenses.

The charges cover money Duffy allegedly received from Nigel Wright, the prime minister's former chief of staff, to repay the government for the improperly claimed expenses.

A spokesman for Harper called the behavior described in the charges "disgraceful."

Canada's governing Conservative party has tried to distance itself from Duffy's scandals since allegations of misspending began in December 2012. The former Conservative senator was suspended without pay in November 2013.