the major of brussels says 20 of those deaths were in the explosion at mel beck station.aul brennan is close to the metro station, neave barker is at the airport. this is his report. >> reporter: this video was taken just a few moments after the explosions at brussels airport. eyewitnesss say they felt the blast. >> i saw a light flash, and a big explosion, and then people started to scream and started to run, and it was at that point we realized there was something going on. >> translator: we were having lunch on the fourth floor when we heard the first explosion. then there was screaming and people started to leave, then there was a second large explosion and the windows shatterered. >> reporter: the explosions took place just after 7 gmt with another just an hour later at the metro station in the city. >> as i was exiting the metro, there was a loud muffled explosion, a lot of dust raised and people started kind of panicking and leaving the metro station very quickly. >> reporter: belgium had been on high alert since the arrest of salah abdeslam. >> translator: i have