French rugby's governing body the LNR on Friday opened disciplinary proceedings against former All Black Ali Williams and Australian international James O'Connor after both were busted with cocaine in Paris.
The 35-year-old Williams, who plays for Top 14 champions Racing 92, has been charged by French police with buying cocaine, and Toulon's O'Connor, 26, with possession of the drug.
"The president of the LNR has approached the League's disciplinary commission to initiate proceedings against the two players," the French National Rugby League (LNR) said in a statement.
"Ali Williams and James O'Connor will be called before the Commission at a date which will be communicated later," it added.
The pair were arrested at 3am on Saturday, February 25 outside a nightclub near the Champs Elysees in possession of 2.4 grams (0.08 ounces) of the substance.
Both have been suspended by their clubs.