The son of Kim Jong Nam — the murdered half-brother of North Korean leader Kim Jong Un — has been seen for the first time since his father’s death.

In a 40-second video posted online by a group called Cheollima Civil Defense, Kim Han Sol identifies himself and shows his passport to the camera. The image of the passport has been blacked out.

“I’m currently with my mother and my sister,” he says. “We hope this gets better soon.”

It’s not clear where Kim Han Sol is in the video or when it was shot, though he says his father was killed “a few days ago.”

Kim Han Sol’s identity was verified to CNN by a South Korean National Intelligence Service spokesman.

No one from Kim Jong Nam’s immediate family has been heard from since his murder in Malaysia’s Kuala Lumpur International Airport on February 13.

In a statement, Cheollima Civil Defense said it had responded to an emergency request by Kim Jong Nam’s family for “extraction and protection” last month.

The group thanked the governments of the Netherlands, China, the US and a fourth, unnamed country for “emergency humanitarian assistance” in protecting Kim’s family, and singled out the Dutch Ambassador to South Korea, A. J. A. Embrechts for credit.

The Dutch embassy in Seoul refused to comment when asked by CNN. Representatives for China and the US did not immediately respond to a request for comment.

Nothing is known about the group, which claimed in the statement to have helped other North Koreans escape in the past, including a former “high ranking official.”

“Anyone who wants to escape or share information, we’ll protect you. It’s possible whichever country you are staying in. We’ll send you safely to where you want to go,” the statement said.

No members of Kim Jong Nam’s immediate family have come forward to claim his body.

Malaysian authorities have said they will not release it without DNA from the Kim family.

But North Korea has demanded the release of the body, after what it described as a “forced” autopsy. The autopsy showed Kim had been killed by a powerful VX nerve agent.