Aug 22 (Reuters) - British military intelligence said on Tuesday that a weekend drone attack on an airfield deep inside Russia which Moscow blamed on Ukraine is highly likely to have destroyed a nuclear-capable TU-22M3 supersonic long-range bomber.

Kyiv, which on Monday claimed to have attacked another Russian military airfield, says Russia has used the TU-22M3 to bomb targets across Ukraine with conventional munitions. Western military experts believe Russia has around 60 of the aircraft.