North Korea's state-run media have reported that meetings on military and economic issues were held on Monday, the seventh day of the country's ruling party congress. But there has been no mention of a military parade.
The Workers' Party newspaper Rodong Sinmun ran the report on Tuesday. It had no updates on the country's leader Kim Jong Un, who was elected the party's general secretary on Sunday.
South Korean military officials said on Monday that the North held a parade on Sunday evening, and that they were trying to confirm whether it was a rehearsal.
On Tuesday, the officials said they are thoroughly monitoring related moves.
Rodong Sinmun reported that invitations to a commemorative event have been sent to those who contributed to the party or the military.
It's unclear when the event would be held and in what form, but Yonhap news agency and other South Korean media say it could be a parade of soldiers and civilians.