Fort Hood Texas Army Base Shooting

A shooting at the Ft. Hood Army base in Texas this afternoon has left at least 12 people dead and 31 wounded. The Army said that one shooter was killed and two others apprehended, and ABC News identified one of the shooters as Maj. Malik Nadal Hasan.

Army deputy chief of staff Gen. Peter W. Chiarelli has been at the head of the efforts to reduce the number of Army suicides, which hit a three-decade-high in 2008. [Update 5:01pm: A previous version of this post stated that Gen. Chiarelli was headed to Ft. Hood today, the Army tells us he is not.]

News organizations are updating as quickly as they can about the tragedy, but Twitter users are also expressing their concern and speculations on the social network, using the hashtags “#fthood” and “#forthood.” Topping the trending topics, which show the most popular topics at any given time, are “Fort Hood” “Texas” and “Major Malik Nadal.”