Russia accused of downing a passenger jet on Jack Hallihan. Fox News.

Experts say the evidence points to Russian air defenses in Chechnya for the Christmas Day crash of an Azerbaijan airline's passenger plane.

As Fox is Stephanie Bennett reports.

Speculation is mounting as to what caused the crash, and now we may have an answer.

Four sources in Azerbaijan with knowledge of the investigation tell Reuters, is mounting as to what caused the crash, and now we may have an answer.

Four sources in Azerbaijan with knowledge of the investigation tell Reuters that the flight was downed by a Russian air defense system, possibly while fending off a Ukrainian drone attack in the region.

One source says that the plane's communications were paralyzed by electronic warfare systems

on the approach into

Grozny, but adds no one claims that it was done on purpose. The aircraft took off from

Baku on Wednesday morning and was due to fly to the Russian city of Grozny but was diverted into

Kazakhstan. The plane hurtled toward the ground and burst into flames, killing 38. NATO is now calling for a full investigation

into the crash. In London, Stephanie Bennett, Fox News. Israel taking aim at Iran-backed Houthi

rebels in Yemen following attacks in Tel Aviv. Explosions rocked the capital city of Sana'a with

IDF fighter jets in the skies overhead. We know the Israelis say these strikes targeted

the main airport in the city in addition to power plants, all of this in response to continued

ballistic missile and drone attacks against their country. Israel's prime minister

Benjamin Netanyahu oversaw the strikes alongside his chief of staff and Israeli defense

minister Israel Katz.

The strikes come as day 447 of the war between Israel and Hamas,

as diplomatic efforts continued to reach a ceasefire agreement.

Fox is Trey Yinks reporting from Tel Aviv.

The U.S. military has also targeted Houthi rebels in Yemen in recent days.

...