NATO fighter jets shot down multiple Russian drones that violated Polish airspace during an attack on neighboring Ukraine early on Wednesday, as the military alliance denounced Moscow for “absolutely dangerous” behavior that ratcheted up tensions to a new level.

In those hectic seconds, it was unclear where the shot came from, or if the gunmen would fire another. Footage shows those security guards acted accordingly: staying low to the ground, drawing their guns at their sides in case of more fire, and quickly tending to Kirk's wound. Kirk was rushed to hospital where he died from his injuries.

More than a dozen long-range kamikaze drones seen near an airport controlled by Sudan's Rapid Support Forces during a major air assault on army territory in May indicate the paramilitaries have new weapons that could alter the course of the war.

For more than three years, Ukraine has been battling Russian attack drones. On Wednesday, NATO got a taste of that fight.

Nervousness is growing among countries neighbouring Russia, with Latvia and Poland limiting access to their airspace.

Ryanair boss Michael O'Leary warned on Thursday that the Russian war in Ukraine would cause travel disruption for European airlines for years to come, a day after Poland shot down suspected Russian drones in its airspace.

Australia said Wednesday it will deploy a $1.1 billion fleet of "Ghost Shark" underwater attack drones to bolster its firepower in a threatening regional landscape.

Organisers said two boats were hit in separate incidents; Tunisian authorities disputed the first and have not commented yet on the second.