On 24 December, the four-day survey was completed after a separate team of ten South Korean surveyors entered North Korea and joined ten North Korean surveyors to inspect a 4 kilometers road in Kaesŏng, https://www.independent.ng/s-korean-officials-visit-n-korea-for-joint-road-survey/ and on 26 December the groundbreaking ceremony was held as scheduled in Kaesŏng; http://time.com/5488315/north-south-korea-railway-sanctions/ about 100 South Korean officials entered North Korea to attend the ceremony.