evan lamos, a new jersey native. >>> was on the metro train behind the train that was hit by a bomb blast this morning. what followed what a frantic evacuation of passengers through the smoky tunnel. evan caught it all on camera. here here is in his own words. >> this morning i was on my way to work. i went via metro. i was reading on my phone about some explosions at the airport. immediately i knew there was something going on in the country. then suddenly there was a kind of blast of air and my ears popped. we heard some loud thuds that seemed to be in the distance. and the metro stopped. and there was an announcement that came over the speakers saying that there had been a disturbance on the metro line. in that time people were a little bit nervous on the metro. there were people starting to talk about the fact that there had been an attack at the airport. people seemed to be a little bit disturbed and a little bit concerned. they opened the very last door and saw the ladder and had us evacuate out onto the metro tracks. there was smoke that collected in the metro tunnel. so as we were

. >> evan lamos in his when we come back, how will this day of impact security ar with you for a long time. >>> we're back with more of our breaking news coverage of the terror attacks in brussels. we want to bring in now nbc news analyst christopher dickie, the news editor for "the daily beast" and is based in paris. christopher, after the paris attack there was a lot of soul-searching about the open borders at the eu, about security cooperation. what happened to that assuming it's picked up, where does it go now? >> well, it was and is an ongoing conversation. there's always talk about how you can have better intelligence-sharing. how the police can work together better, but we're talking about 28 different countries here with very different culture, very different legal cultures and police cultures. it's very, very hard to get them to coordinate coordinate. the idea that you can open up all the borders of europe but not have a single strong federal police force and federal law enforcement system was always a fairly impractical why the and now the chickens are coming home to roost t

. >> evan lamos in his own words tonight. when we come back, how will this day of terror in brussels with you for a long time. >>> we're back with more of our breaking news coverage of the terror attacks in brussels. we want to bring in now nbc news analyst christopher dickie, the news editor for "the daily beast" and is based in paris. christopher, after the paris attack there was a lot of soul-searching about the open borders at the eu, about security cooperation. what happened to that conversation, and assuming it's picked up, where does it go now? >> well, it was and is an ongoing conversation. there's always talk about how you can have better intelligence-sharing. how the police can work together better, but we're talking about 28 different countries here with very different culture, very different legal cultures and police cultures. it's very, very hard to get them to coordinate coordinate. the idea that you can open up all the borders of europe but not have a single strong federal police force and federal law enforceme

this video is from evan lamos who was on a metro train in explosions happened. he of passengers filled underground tunnel to safety. evan, like many others, have provided witness accounts on social media following the two explosions at the airport and one at the metro station. facebook has even activated its safety check feature. the tool sends a notification to all users in the area affected by the user is safe, if the person says yes, a status updated will automatically be relatives know they are ok. meanwhile, brussels residents who live near metro stations and airports are using hashtag open house and hashtag to invite people who are stranded this person is offering stranded commuters to send they need a place on lockdown. flights and trains these tweets are from residents who are reaching their doors to people in the area someone was planning to leave the city, but now can't, they are offering couches, a cup of tea and some company. those are just some of the many messages of support flowing around online. another moving images comes from a famous french car

we're joined by an eyewitness evan lamos when it happened. we'll show some of the video you shot early this morning from the subway. tell us what you were able to in between the arts-loi station tion so we felt a small what is blast of wind and thudding sounds which apparently and the metro stopped and the power turned off, engine turned off and heard announcements over the intercome saying t of disruption on the line, on the metro line working to resolve it. and about two or three minutes later someone came from the front of the metro metro. i was in the last car and they opened the door and installed avacuate on to the tracks where we walked back towards the arts-loi metro station where we had come from and eventually up on to the street and area. >> you said explosions so did you hear more than one thud? >> after the metro stopped we could hear some t distance. it wasn't really clear to us it wasn't immediately clear that this was an attack, we just kind of felt this little burst of heard some -- what might sound like thunder in the distan

we're joined now by an eyewitness evan lamos at the train station when the explosion occurred.k you for joining us. we're going to show some of the video that you shot earlier this morning at the subway. tell us what you were able to see and hear >> i was on the metro between the arts-loi and the maelbeek station. we felt a small blast of wind and some thudding sounds which were apparently some explosions. the metro immediately stopped. the power turned off and the engine turned off. some announcements over the intercom, some disruptions on on the metro line and they were working to resolve it. two, three minutes someone came from the front of the metro to the back of the metro. i was in last car. they opened the door, install a ladder and had us evacuate out of the back of the metro where we walked back to the metro station where we had come from. >> you said explosions, so did you hear more than one ud thud? >> after the metro stopped we could hear some thudding in the distance, it wasn't really clear to us what it was, it wasn't immediately clear that this was an attack, we