 -- Authorities in Somalia have released video footage from inside Mogadishu’s airport that they say shows a laptop packed with explosives being handed to a passenger before the mid-air explosion that forced a Daallo Airlines flight to make an emergency landing last week.

In the video, reportedly taken by surveillance cameras after security checks, two men can be seen walking together when one of the men hands a laptop case to a third man -- the suspected plane bomber, according to The Associated Press.

The two men and several others have been arrested, a senior Somali spokesman told the Associated Press.

The suspected bomber was sucked out of the airplane after the mid-air explosion left a relatively small hole in the plane, authorities said.

It is still unclear exactly who is responsible for planning the explosion, but authorities are looking into whether the al Qaeda-linked terrorist group al Shabab, based in Somalia, may be behind it, and they're not ready to rule out ISIS, sources said.