Russia says 200 Ukrainians 'eliminated' in airbase siege

More now on reports that Russian forces have taken control of the key Hostomel airfield near Kyiv.

Some 200 Russian helicopters were involved in the operation at the airfield, also known as Antonov Airport, the Russian Defence Ministry says.

The ministry claimed that 200 troops from Ukraine's special units were killed, adding that there were no Russian losses, according to state news agency RIA Novosti.

We have not yet heard from the Ukrainian military - and the Russian account has not been verified.

The Russian Defence Ministry says: "The success of the landing force was ensured by suppressing all air defence systems near the landing site, full isolation of the area of military action from the air and active radio electronic warfare."