The British police is planning to temporarily close some roads around Queen Elizabeth's London residence Buckingham Palace during a military ceremony, following the truck attack in Berlin, killed 12 people and injured 48.

According to the London's Metropolitan Police, they will trial a two-hour road closure plan for three months to protect the large crowds which gather on days when the Changing of the Guard ceremony takes place outside Buckingham Palace.

The police said in a statement that, "The road closures, which have been planned for some time, are a precautionary measure and not in relation to any specific intelligence."

The United Kingdom is on its second highest threat level, meaning an attack by militants is considered highly likely.

Earlier in December, the United Kingdom's foreign intelligence chief said, Islamic State (ISIS) militants were using turmoil in Syria to plot attacks against the Britain and her allies.

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