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.

Russia’s aviation chief said Friday that a Ukrainian drone attack was underway in the Russian region that an airliner was destined for before it diverted and crashed earlier this week.

Dmitry Yadrov, of Rosaviatsia, didn’t comment on statements by an Azerbaijani lawmaker and some aviation experts who blamed Wednesday’s Azerbaijan Airlines crash on Russian air defenses responding to a Ukrainian attack.

The plane was flying from Azerbaijan’s capital of Baku to Grozny, the regional capital of the Russian republic of Chechnya, when it turned toward Kazakhstan and crashed while making an attempt to land there. The crash killed 38 people and left all 29 survivors injured.

Azerbaijan Airlines on Friday blamed the crash on unspecified “physical and technical interference” and announced the suspension of flights to several Russian airports. It didn’t say where the interference came from or provide any further details.

Passengers and crew who survived the crash told Azerbaijani media that they heard loud noises on the aircraft as it was circling over Grozny.

Flight attendant Aydan Rahimli said that after one loud noise, the oxygen masks automatically released. She said that she went to perform first aid on a colleague, Zulfugar Asadov, and then they heard another bang.

Asadov said that the noises sounded like something hitting the plane from outside. He denied Kazakh officials’ claim that an oxygen canister exploded inside the plane.

Rashad Nabiyev, Azerbaijan’s minister of digital development and transportation, pointed to the survivors’ accounts to emphasize that the plane suffered an outside impact while flying over Grozny. Speaking to Azerbaijani media, he added that “the type of weapon used in the impact from outside will be determined to investigators.”

Authorities in Azerbaijan, Kazakhstan and Russia have been tight-lipped about a possible cause pending an official probe. But a member of Azerbaijan’s parliament, Rasim Musabekov, told the Azerbaijani news agency Turan on Thursday that the plane was fired on while in the skies over Grozny and urged Russia to offer an official apology.

Asked about Musabekov’s statement, Kremlin spokesman Dmitry Peskov declined to comment, saying that it will be up to investigators to determine the cause of the crash.

“The air incident is being investigated, and we don’t believe we have the right to make any assessments until the conclusions are made as a result of the investigation,” Peskov said in a conference call with reporters.

Yadrov, the Russian aviation chief, said that as the plane was preparing to land in Grozny in deep fog, Ukrainian drones were targeting the city, prompting authorities to close the area to air traffic.

Yadrov said that after the captain made two unsuccessful attempts to land in Grozny, he was offered other airports but decided to fly to Aktau in Kazakhstan, across the Caspian Sea.

“The situation in the area of Grozny airport was quite difficult,” he said in a statement. “There are many circumstances that it’s necessary to investigate jointly.”

Investigators from Azerbaijan are working in Grozny as part of the crash probe, the Azerbaijani Prosecutor General’s office said in a statement.

As the probe began, some aviation experts pointed out that holes seen in the plane’s tail section suggested that it could have come under fire from Russian air defense systems fending off a Ukrainian drone attack.

Ukrainian drones have previously attacked Grozny and other areas in the country’s North Caucasus.

FlightRadar24 said in an online post that the aircraft faced “strong GPS jamming” that interfered with flight tracking data. Russia has extensively used sophisticated jamming equipment to fend off drone attacks.

Following Wednesday’s suspension of flights from Baku to Grozy and Makhachkala, Azerbaijan Airlines announced Friday that it would also halt service to eight more Russian cities.

The company will continue to operate flights to six Russian cities, including Moscow and St. Petersburg. Those cities also have been repeatedly targeted by Ukrainian drone strikes in the past.

Kazakhstan’s Qazaq Air also announced Friday that it was suspending flights from Astana to the Russian city of Yekaterinburg in the Ural Mountains for a month.

FlyDubai also halted flights to Sochi and Mineralnye Vody in southern Russian until Jan. 5.

The day before, Israel’s El Al carrier suspended flights from Tel Aviv to Moscow citing “developments in Russia’s airspace.” The airline said it would reassess the situation next week.

Associated Press writer Aida Sultanova contributed to this report from London.