course all in the vicinity of the south bank area. i m afraid we don t have any other information that we can bring you at this time, butjust to repeat that the metropolitan police have closed a number of bridges in central london, saying it is a precaution, but they are assessing unattended item. the bridges are westminster bridge, waterloo bridge and the foot bridges hungerford goaljubilee flood bridges. we will bring you any more information as soon as we get it. let s return to the situation in ukraine and the situation in russia. let s speak to our moscow correspondent, caroline davies. reports of some of these russian troops withdrawing from the border with ukraine, what more can you tell us about that? for example, how many and from where? shit