Two Saudi pilots were killed when an Apache helicopter crashed in Yemen, Saudi media reported, a day after the Houthi group's al-Masirah channel broadcast pictures of what it said was a downing of the Saudi Apache plane off Asir while it was carrying out hostile actions.

Houthi media quoted military spokesman Yahya Sari as saying that Houthi air defenses had shot down a Saudi Apache plane with a surface-to-air missile "with a new technology that we will reveal later."

He said the Saudi plane was shot down this morning in a licensed area off Asir while it was conducting hostilities. Its crew of two Saudis were killed and burned completely.

He added that the process of dropping the Apache documented by sound and image by the lens of the war media of the Houthi group.

The Yemeni military spokesman warned that approaching the Yemeni airspace is prohibited, and that this atmosphere will not be a picnic for anyone, and vowed to address all attempts by what he described as enemies in order to fully protect Yemeni airspace.

The march said the downfall of Saudi Apache came three months after the Houthi forces uncovered two air defense systems, the "Fatir 1" and "Saqib 1".

The Saudi-led coalition intervened in Yemen in March 2015 at the request of Yemeni President Abd Rabbo Mansour Hadi, after the Houthis ousted his government from the capital Sanaa.

The war has claimed the lives of about 100,000 people and pushed millions to the brink of starvation, according to the NGO Data on Sites and Events of Armed Conflict.