01/03/2015 08:13 EST | Updated 03/05/2015 05:59 EST

AP source: NHL players union looking into whether Flyers broke rules with holiday flight

A person familiar with the complaint tells The Associated Press that the NHL Players' Association is investigating whether the Philadelphia Flyers violated the collective bargaining agreement by travelling during a holiday break.

Rogers Sportsnet in Toronto reported Saturday ( ) that online flight records showed the Flyers took a flight from Philadelphia to Nashville the night of Dec. 26.

Players are barred from travelling or practicing from Dec. 24-26 under the collective bargaining agreement.

The person who confirmed the union investigation spoke on the condition of anonymity because the NHLPA has not publicly commented on the report.

Bill Daly, the NHL's deputy commissioner, declined comment.

Flyers spokesman Zack Hill said the team had no comment.