Was Russian drone incursion deliberate or accidental?

Poland shot down what it said were Russian drones in its airspace on Wednesday with the backing of military aircraft from its NATO allies, the first time a member of the Western military alliance is known to have fired shots during Russia’s war in Ukraine. The incident will ratchet up tensions between Russia and the West, but NATO’s response will largely depend on whether the incursion is deemed to be deliberate or an accident, says France 24’s Angela Diffley.