embassy in afghanistan in kabul. two dead, one an american citizen. monitoring the situation from our bureau in abu dhabi. an apparent breach of security inside a heavily guarded complex in kabul. what do we know about it. reporter: bear in mind where this was. this was a part of the u.s. embassy compound and annex will many are working. one of the employees started shooting in various directions. he was later shot dead. his victims appeared to have been one u.s. citizen, also an embassy employee and another one injured, not life threatening and subsequently moved to hospital. has we don t know is why this happened. could it have been some kind of taliban plot? unclear. investigations are ongoing. or a personal dispute. how did this afghan get through security and carry this out? many questions but certainly a significant breach of security right in the heart of kabul s most secure area, ali. it s not the first time. we saw this attack a little while ago. hats going on wi