Police officers across Hertfordshire observed a two minutes' silence for murdered PC Keith Palmer whose funeral was held in London yesterday.

A sombre mood descended at headquarters in Welwyn Garden City as police and civilian staff fell silent to remember the popular officer, murdered in the line of duty by a terrorist.

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More than 50 officers and staff from the force gathered outside the police station in while some local officers attended the funeral at Southwark Cathedral in London.

Together they remembered the 48-year-old father, stabbed to death by Khalid Masood on the cobbled forecourt of the Palace of Westminster in central London last month.

PC Palmer's funeral cortege, including his hearse topped with a floral tribute reading No 1 Daddy, left the palace, where his coffin laid in rest overnight, through the Carriage Gates he died defending.

PC Palmer's coffin travelled slowly and amid silence along 2.6 miles of the capital's usually bustling streets, avoiding the scene of last month's atrocity on Westminster Bridge on its journey to Southwark Cathedral, in central London.

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Around 50 members of PC Palmer's family including his wife, child, mother and father, brother and sisters attended the cathedral service, led by the Dean of Southwark The Very Reverend Andrew Nunn followed by a private cremation.

The Met said more than 5,000 officers from the force and across the country were expected to gather in central London for the service and to line the route, which has seen dozens of roads closed to traffic for hours.