March 28 (UPI) -- Steel barriers surrounding Britain's Windsor Castle were installed as extra protection in the wake of last week's attack in London, police said.
The castle, in England's Berkshire county, will host the Changing of the Guard parade, a popular tourist attraction, on Wednesday. Black steel barriers were set up Sunday night, and by Monday morning the castle was surrounded by a ring of steel to aid in road closures during the ceremony. Thames Valley Police called the new fortifications "proportionate and necessary," but added there is "no specific threat to Windsor."