The Republican National Committee said its headquarters in Washington, D.C., were placed under lockdown Wednesday morning after vials of blood were sent to the building.

The Republican National Committee headquarters in Washington, D.C., was under lockdown Wednesday morning after someone sent vials of blood to the building, three sources familiar with the ...

The Republican National Committee headquarters in Washington, D.C., was under lockdown Wednesday morning after someone sent vials of blood to the building, ...

The Republican National Committee headquarters was under lockdown Wednesday morning after someone sent vials of blood, three sources familiar with the situation told NBC News.

The Republican National Committee said its headquarters in Washington, D.C., were placed under lockdown Wednesday morning after vials of blood were sent to the building.

After a package containing two vials of blood was delivered, the Republican National Committee headquarters in Washington D.C., on Wednesday was evacuated and locked down for roughly two hours.

The Republican headquarters in Washington, DC, has put under lockdown "until further notice", with a Hazmat team and police personnel present on the scene. The Republican headquarters in ...

The Republican National Committee headquarters in Washington, D.C., was under lockdown Wednesday morning after someone sent vials of blood to the building, ...

The Republican National Committee said its headquarters in Washington, D.C., were placed under lockdown Wednesday morning after vials of blood were sent to the building. In a statement, the RNC ...

The Republican National Committee said its headquarters in Washington, D.C., were placed under lockdown Wednesday morning after vials of blood were sent to the building. In a statement, the RNC ...

The Republican National Committee headquarters in Washington, D.C., was under lockdown Wednesday morning after someone sent vials of blood to the building, ...

The Republican National Committee headquarters in Washington, D.C., was under lockdown Wednesday morning after someone sent vials of blood to the building, ...