Seoul , South Korea ( CNN ) -- Representatives for North and South Korea agreed that October would be a good time to do another round of reunions for families separated by the Korean war , the South Korean Unification Ministry said Friday . But both sides are still negotiating details such as where the reunion will be . If talks do not go well on where the reunions will be , the event could be canceled . The two sides agreed to hold the reunions on October 21 to 27 . They could not agree on how many families to include in the reunion , and where it should be held , the ministry said . The North had proposed resuming the reunions , which traditionally happen around the Koreas ' autumn harvest holiday . It falls on September 22 this year . Two Red Cross officials and 14 delegates from South Korea crossed the armed border into North Korea on Friday morning to meet with counterparts , according to the Yonhap news agency . Millions of families were separated by the Korean War , which ended in 1953 with a cease-fire , but no formal peace treaty . About 10,000 people applied to take part in a similar reunion last year , but fewer than 200 families were allowed to participate . Family members wept as they saw one another for the first time in decades . No mail , telephone or e-mail exchanges exist between ordinary citizens across the Korean border . Yoon Ki-Dal , 88 , of South Korea thought such a moment would never come . After leaving his son and daughters when they were babies during the Korean War , he was able to hold the hands of his North Korean children last September . `` Father , we thought you were dead , '' his daughter , who was in her 60s , told him , her face trembling . The families were allowed to spend a few days together before the South Koreans had to return home .
NEW : They do not agree on a place or how many families may participate . Millions of families were separated by the Korean War , which ended in 1953 . About 10,000 people applied to reunite last year , but fewer than 200 families were chosen .