A Navy war-ship will dock on the Thames in Central London later.
HMS Richmond will stop at West India Dock for five days as part of an 'Armed Forces Day' celebration.
This Saturday it will be open to the public, offering a unique opportunity for Londoners to go aboard and learn more about the careers and opportunities available in the Royal Navy.
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The operation carried out by Westminster City Council led to the seizure of £8,000 worth of cigarettes.
Armed troops have been stationed around Parliament to free up armed police to patrol the streets in the wake of the Manchester bomb attack.
Chelsea had planned an open top bus tour to show off the Premier League trophy and hope to add the FA Cup in Saturday's final with Arsenal.