Two frames from a video sent to CNN that appears to show a missile fired into the Tehran sky early Wednesday morning and striking an object in the sky. Obtained by Nariman Gharib

Video sent to CNN appears to show a missile fired into the Tehran sky early Wednesday morning and striking an object in the sky. Around that time, a Ukranian airliner crashed shortly after takeoff.

CNN cannot verify the authenticity of the video, but the buildings seen in it appears similar to ones that are in the Iranian capitol suburb of Parand. The Ukrainian plane crashed just north of the suburb.

The video, obtained by Nariman Gharib who then sent it to CNN and the New York Times, shows a light in the sky, moving left to right and then exploding.

CNN has asked Gharib for more information of who took the video and how he obtained it, but has not yet received a response.

The US increasingly believes that Iran mistakenly shot down a Ukrainian airliner on Tuesday, according to multiple US officials. The working theory is based on continuing analysis of data from satellites, radar and electronic data collected routinely by US military and intelligence.

The flight was downed following Iranian strikes on US forces in Iraq.

The Ukrainian Jetliner that crashed Wednesday was shot down by two Russian made surface to air missiles (SA-15), according to a US official familiar with the intelligence. The US saw Iranian radar signals lock onto the jetliner, before it being shot down.