All 179 victims from the Jeju Air crash in South Korea have been identified, authorities said, including entire families and a 3-year-old boy.

Only two people — both crew members, one male and one female, who were working on the flight from Bangkok to Muan International Airport — survived the Sunday morning crash, which happened after the Boeing 737-800 landed on its belly and crashed into a concrete fence, bursting into flames.

The Washington Post reports entire families were among the victims, including some that had three generations traveling together for the holidays. The New York Times reports a man on the plane hadn’t told his family he’d be traveling so as not to worry them.

The New York Post shared images posted to Instagram by a mother on vacation with her husband and 3-year-old son, who were all among the victims identified by local media. Authorities confirmed Sunday a 3-year-old boy was the youngest person to die in the crash.

Families of victims waited days at the airport as officials worked to identify all the bodies. According to the BBC, Police Superintendent General Na Won-o explained the process was moving slowly because of how badly the bodies were damaged.

South Korea’s Transport Ministry said 11 bodies have been handed over to relatives so far, according to The Associated Press. Families of the victims were able to visit the crash site for the first time on New Year’s Day.

American investigators assisting in the examination of the crash arrived in South Korea on Tuesday. The AP reports a damaged flight data recorder, called a black box, will be sent to the United States for analysis, and Transport Ministry had retrieved data from a second black box that had recorded audio from the cockpit of the airplane.