As Francis became the first pope in 25 years to visit South Korea on Thursday, Seoul's never-timid rival, North Korea, made its presence felt by firing three short-range projectiles less than an hour before he arrived, officials said.
Although North Korea declined an invitation to Seoul for the papal visit, Francis plans to reach out to the North during his five-day trip in a Mass for peace and reconciliation on the divided Korean peninsula.
But Pyongyang has a long history of making sure it is not forgotten during high-profile events in the South.
Arriving at an airport just south of Seoul, the pope shook hands with four relatives of a South Korean ferry sinking that killed more than 300 and two descendants of Korean martyrs who died rather than renounce their faith.
Some elderly Catholics wiped tears from their faces, bowing deeply as they greeted the pope. A boy and girl in traditional Korean dress presented Francis with a bouquet of flowers. The pope then stepped into a small, black, locally made car for the trip into Seoul, where he and President Park Geun-hye were expected to make speeches.
This is the first papal visit to South Korea since Pope John Paul II traveled there in 1989. In January, Francis plans to visit Sri Lanka and the Philippines.
As his plane flew through Chinese airspace on the way to South Korea early Thursday, Francis sent a telegram of greetings and prayers to Chinese President Xi Jinping. It was a rare opportunity for an exchange since the Holy See and Beijing have no diplomatic relations, and furthers a low-key push for better relations with China and efforts to heal a rift between the Chinese authorities and those Catholics who worship outside the state-recognized church.
Vatican protocol calls for Francis to send telegrams to heads of state whenever he flies through their airspace. Usually they pass unnoticed, but Thursday's telegram was unique because the last time a pope wanted to fly over China, in 1989, Beijing refused.
Planned highlights of Francis' Korean visit include his participation in a Catholic festival for young believers from around Asia. A ceremony Saturday to beatify Korean martyrs who perished for their faith from 1791 to 1888 could draw about 1 million people, South Korea's Yonhap News Agency reported.
Authorities in North Korea declined an invitation by the Seoul archdiocese to send a delegation to attend a Mass, the Vatican said.
The apparent North Korean test firing was conducted from Wonsan on the North's east coast, and the projectiles flew about 135 miles, according to a ministry official who spoke on condition of anonymity, citing office rules. It wasn't immediately clear what the projectiles were.