Washington Navy Yard shooting: Live updates on the shooting

At least 12 people were killed Monday morning when a person opened fire inside a building at the Washington Navy Yard, United States Navy and MPD officials say. Here are live updates.

7:05 PM: The live blog is ending for the day. Check for more updates.

6:10 PM: The military reports suspected shooter Aaron Alexis enlisted on May 5, 2007. He received the National Defense Service Medal and the Global War on Terrorism Service Medal.

5:42 PM:{ }Obama is ordering flags to be lowered to half-staff to honor victims of a shooting. This applies to all public grounds, military posts and naval vessels, plus U.S. embassies and outposts overseas.

5:30 PM: For the commute home, 295, 395, and 695 have re-opened.

5:20 PM: Per AP - Aaron Alexis had been working for the fleet logistics support squadron No. 46, in Fort Worth, Texas. The Navy says his home of record was New York City.

5:11 PM: Aaron Alexis was a full-time Navy reservist, based in Texas, when he left service in 2011.

4:45 PM: The FBI release this photo of Aaron Alexis, the suspected Navy Yard shooter.

#NavyYardShooting Seeking Info Poster: 800-CALL-FBI or @FBIWFO

— FBI PressOffice (@FBIPressOffice) September 16, 2013

{ }

4:23 PM: D.C. Police are still searching for a black male, 5'10" wearing olive military-style fatigues.

4:22 PM: The death toll from today's shooting now stands at 13.

4:18 PM:{ }{ }The police officer and two civilians wounded in the shooting are expected to survive, a hospital official said.

3:40 PM: The Associated Press is reporting that the name of the deceased shooter is Aaron Alexis.

3:11 PM: The Washington Nationals have postponed tonight's game against the Atlanta Braves.

3:10 PM:{ }Senate officials say the{ }Senate is shut down while an additional possible{ }Navy Yard shooter is sought. No one is allowed to enter or exit.

3:08 p.m.: All D.C. Public Schools that are locked down will be dismissed on time, officials say. Each of those schools, except for Eastern High and Eliot-Hine, will also conduct all normal after-school activities.

2:48 p.m.: D.C. Public Charter School officials say that most schools that are locked down will be dismissed on time. Resource officers will be dispatched to the following schools to coordinate parent pickup locations: Friendship PCS Chamberlain Elementary & Middle, Richard Wright PCS for Journalism and Media Arts, Eagle PCS New Jersey Ave, and Cesar Chavez PCS for Public Policy - Capitol Hill.

In addition, the following schools will dismiss at the following times: Somerset Prep PCS (4:15), Richard Wright PCS (4:30 p.m.), Friendship PCS Chamberlain (3:15, all evening activities canceled), Eagle Academy PCS (4 p.m.)

2:44 p.m.: D.C. police officials say that the white male that police believed may be a suspect in the shootings has been identified as is no longer being considered a suspect.

2:42 PM: Secretary of Defense Chuck Hagel is ordering the Pentagon flags to fly at half-staff to honor the victims of the Navy Yard shooting.

2:33 PM: MEDSTAR is scheduled to hold another press conference at 3:15 p.m.

2:09 PM: D.C. Mayor Vincent Gray said 12 people are dead after the shooting rampage at the Navy Yard.

1:49 p.m.: A number of schools remain on lockdown throughout the District of Columbia. Those schools are designated on the map below with a blue dot.

1:39 PM: M Street Remains closed from S. Capital Street to 11th Street. The northbound lane of the 11th Street Bridge is closed. But the southbound lane is now open.

1:29 PM:{ }"Everyone here at the Department of Defense is saddened by the incident at the Washington Navy Yard this morning," said Pentagon spokesman{ }George Little.

1:12 PM: The Naval Sea Systems Command reports there are still people inside building 197 at the Naval Yard.

12:50 PM: Per AP: resident Barack Obama is mourning what he called "yet another mass shooting" in the United States that he says took the life of American patriots. Obama promised to make sure, quote, "whoever carried out this cowardly act is held responsible."

12:27 PM: D.C. Police Chief Cathy Lanier said one of the potential additional shooters is described as a white male in a khaki tan military uniform who was armed with a handgun. He was last seen at about 8:30 a.m. A second potential shooter is described as a black male in his 50s, also armed and wearing a military-style uniform.

12:20 PM: D.C. Police Chief Cathy Lanier confirmed one gunman in the Navy Yard shooting is dead. But she said there are potentially two additional shooters.

12:01 PM: Family members of Washington Navy Yard employees who want information on the shooting can call (202) 433-6151.

11:54 AM: The following charter schools are now on lockdown:{ }César Chávez PCS for Public Policy, Eagle Academy PCS, Eagle Academy, Friendship PCS Chamberlain Elementary and Middle, Richard Wright, Somerset Prep DC PCS.

11:50 AM: MPD Chief Cathy Lanier is scheduled to hold a press conference 12"10 p.m. to discuss the shooting.

11:44 AM: The Associated Press reports that the gunman has died. The AP is citing a federal law enforcement source.

11:37 AM: The chance of survival is good for the three victims at MEDSTAR.

11:34 AM: Washington Hospital Center confirms three patients from Navy Yard shooting were brought to MEDSTAR.

11:17 AM: ABC7's Jennifer Donelan reports that two law enforcement officers report that there are at least eight dead.

11:07 AM: President Obama is scheduled to discuss the shootings at 11:45 a.m.

10:55 AM: Authorities will hold a press conference at MEDSTAR hospital at 11:30 a.m.

10:45 AM: The Washington Post is now reporting that two gunmen were involved in the shooting.

10:41 AM: Richard Wright Public Charter is now on lockdown.

10:36 AM: The Washington Post and ABC News is reporting that four people were killed in the Navy Yard shooting.

10:27 AM: The Washington Post is reporting that three gunmen took part in the shooting, including one dressed in military fatigues.

10:24 AM: The following D.C. schools are on lockdown:

• Amidon-Bowen Elementary
• Brent Elementary School
• Eastern High School
• Eliot-Hine Middle School
• Jefferson Academy
• Tyler Elementary School
• Van Ness Administrative Building

10:23 AM:

{ }

JUST IN via @AP: Defense official: Navy Yard shooter 'contained' but not in custody.

— ABC7News (@ABC7News) September 16, 2013

10:18: AM: The ground stop at Reagan National Airport is now lifted.

10:14 AM: From ABC7's Rebecca Cooper - D.C. Bus routes being rerouted: A9, P6, V7, V9, 90 and 92. Bus routes of the DC Circulator experiencing delays.

10:10 AM: The FBI has confirmed that they are involved in the investigation.

10:07 AM: D.C. Police confirm that 10 people are wounded in the shooting.

10:07 AM: There is a ground stop issued at Reagan National Airport.

10:05 AM: The 11th Street Bridge is shut down.