sharm el shell is very active, we know they raised the threat level to the maximum level by one notch, so they're certainly active, yeah. >> they have not identified at this point yet any of the individuals believed to have been involved in this attack? >> no. >> okay. if i can ask you to stay with us, if possible we want to cross back over to london really quickly and check in with our colleague alastair jamieson in the london bureau. >> absolutely. to emphasize how much of an ongoing situation this is, brussels airport is tweeting out to people who are stranded on the air side of the airport that is where after the planes are, many had to leave the terminal out on to the runway or leave the planes out on the runway, including those who have arrived. many thousands of people milling around there. and the airport has tweeted to them to say, stay calm. remain where you are for now. and the city's emergency management is asking people not to use the telephone networks. not to saturate the 3-g networks. if you want to contact people, use instant messaging or use your data, use the intern