The two helicopters reportedly flew at low altitude before the rotor blades of one aircraft struck the other.
Two firefighting helicopters collided on Sunday while battling a massive wildfire in Greece, as authorities struggled to contain fast-moving blazes that have destroyed more than 100 homes northwest of Athens and triggered fresh evacuations on the tourist island of Kefalonia.
The mid-air collision occurred during an aerial firefighting operation in the Psatha area of the Attica region, west of the Greek capital, according to the country's fire service, according to NBC News.
The two helicopters reportedly flew at low altitude before the rotor blades of one aircraft struck the other.
One helicopter reportedly crashed and burst into flames, while the second aircraft released its load of water and continued flying. The authenticity of the footage has not been independently verified.
