Some sort of gas cannister explosiontype thing, yes in Wapping.
(
PeterSeychelles,
Thu 6 Dec 2001, 9:40,
archived)
WEBCAMgo here and check the tower bridge one, its getting mighty dark out there http://www.sky.com/skynews/webcams
(,
Thu 6 Dec 2001, 9:55,
archived)