Christopher Tappin was fined $11,357.14 (£7,095) in addition to his 33-month prison sentence for selling surface-to-air missile parts to Iran, a spokeswoman for the US District Court in El Paso, Texas said.
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Chancellor George Osborne has announced a £500m investment for the Faslane naval base in Scotland, home of the UK's nuclear deterrent.
Five-times major winner Maria Sharapova has pulled out of the US Open tennis championships due to a leg injury.
Police are hunting for a mother who has disappeared with her 10-week-old baby.