An accountability court on Friday directed investigating officer of National Accountability Bureau to appear with record on January 17 in an application of PML-N president Shahbaz Sharif challenging frozen of assets owned by his family.

The court previously had allowed an application by the NAB to freeze assets of the Shahbaz family giving 14-day time to the aggrieved party to challenge the decision.

A counsel of the aggrieved family filed an application before the court and questioned the legality of the decision.