A spokesperson for the Nova Scotia courts says the sentencing hearing for Sub-Lt. Jeffrey Paul Delisle will be postponed.

The hearing for Delisle, who admitted to spying, was supposed to begin Thursday morning. But the Nova Scotia Judiciary said the federal prosecutor cannot attend.

Delisle sold secrets to the Russians for cash. He used USB keys and unsent emails to transmit the information from downtown Halifax to his home, then on to Russian agents.

Delisle pleaded guilty in October to breach of trust and two counts of passing information to a foreign entity over a three-and-a-half year period.

A new date for the hearing has not been set.