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British counter-terrorism police arrested a UK-Iranian dual national in London in connection with a suspected terror plot against RAF Fairford, a military airbase used by the US and UK, with a second British national questioned. UK Prime Minister Andy Burnham said Britain has 'strong indications' that Iran was involved in the incident, prompting an angry denial from Tehran, which summoned the British ambassador over what it called 'false accusations' and said the UK was 'barking up the wrong tree.' Israeli PM Netanyahu said Israel had provided intelligence to the UK before London announced related sanctions. The incident has fueled diplomatic tension between the UK and Iran, with US and Israeli officials reportedly also pointing to Iranian involvement, though no conclusive evidence has been publicly presented.