State television in North Korea has been broadcasting live pictures of the leader, Kim Jong-il, reviewing a military parade accompanied by his youngest son, Kim Jong-un.
It's the latest event to suggest that Kim Jong-un is being prepared to succeed his father.
He was suddenly promoted to senior leadership roles last month.
The BBC reports the parade in the capital Pyongyang marked the 65th anniversary of the ruling Workers' Party.
Officials say the anniversary celebrations will be biggest of their kind in the nation's history.
On Saturday, he appeared with Kim Jong-il, who's said to be in poor health, at a festival in the North Korean capital, Pyongyang, in front of the international media.