Washington, DC (Sports Network) - 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 split 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.