Washington, DC (SportsNetwork.com) - Monday's Braves-Nationals game has been postponed in the wake of the shooting at the Washington Navy Yard.

The game will be made up as part of a day-night doubleheader on Tuesday.

Nationals Park is just blocks away from the Navy Yard along the Anacostia River.

At least 12 people were killed in Monday's shooting, according to the most recent reports. Police were still trying to determine if the alleged gunman acted alone.

"All of us here in the Nationals organization were deeply saddened to learn of the tragic events that occurred this morning only a few blocks from Nationals Park," the team said in a statement. "Our thoughts and prayers remain with our friends at the Navy Yard and those impacted by today's incident.

"The safety of our fans is our utmost priority. As we have throughout the day, the Nationals security personnel will continue to work closely with all levels of law enforcement to reinforce the already high level of security in place at Nationals Park and to ensure that our visitors always have a safe experience."

Tuesday's games are scheduled for 1:05 p.m. ET and 7:05 p.m.