The Foreign Office said: "There have been flash floods in and around the Leh area of northern India.Initial reports indicate that many people have been killed or are missing. Communications networks have been seriously affected.
The Leh-Manali and Leh-Srinagar roads are currently closed and you should not attempt to drive them.A rescue operation by Indian police and armed forces is underway. British nationals in the affected area should follow local advice".
Asking British citizens to monitor local and international weather updates for details of impending weather depressions which are common at this time of year, the revised advisory cautioned against all travel to rural areas of Jammu and Kashmir other than Ladakh; all travel in the immediate vicinity of the border with Pakistan, other than at Wagah; and all travel in Manipur.
It said: "We advise against all but essential travel to Srinagar and Imphal. If you do travel to these areas then you should only do so by air.There is a high threat from terrorism throughout India. Recent attacks have targeted public places including those frequented by foreigners.
"There are increased indications that terrorists are planning attacks in New Delhi", it said and added that Commonwealth Games were due in New Delhi from 3 to 14 October.
