Streets were cordoned off close to the River Thames as emergency services joined in the search for a missing person. West Street in Gravesend was closed by police last night with traffic cones from the roundabout outside The Gandhi restaurant up to Clifton Slipways Pier. Two fire engines and multiple police cars were in attendance from around 7pm till 11pm with fire crews forcing entrance to the boarded-up area of Clifton Slipways. The Gravesend RNLI lifeboat attended to the east of Clifton Slipways Pier in front of Russell Quay and was joined by the Port of London Authority’s cutter boat, Lea…