big black smoke through a posh downtown district. the army later blocking off the area where twisted wreckage of several cars are still smoldering. gregg: conor powell in the middle east bureau with the latest. what do you know so far? reporter: gregg, as you said at least five people were killed, more than 70 people injured as a massive explosion rocked an upscale neighborhood in downtown beirut. it brew out blew out windows for several city blocks, sending smoke across the entire area. the device appears was detonated by remote. violence is no stranger to beirut. it appears the target of today s blast was a convoy of a pro-western former lebanese minister ambassador to washington. he was an important advisor to the hariri family, one. most powerful political dynasties in all of lebanon. the former prime minister, rafik