The presidential office says that it still hasn't been decided how the leaders of the two Koreas will announce the results of their summit in a joint statement. 

Presidential spokesman Kim Eui-kyeom said on Friday morning that the format and the order of the announcement will be decided depending on the outcome of the summit. 

The spokesman also said that it has to be decided which officials will join President Moon Jae-in and North Korean leader Kim Jong-un during the summit talks. 

The spokesman said whether Moon's wife, Kim Jung-sook, will accompany Moon is also undecided.