Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Washington (CNN) A Secret Service agent on Friday shot a man near a security checkpoint close to the White House after he brandished a gun and refused orders to stop. A Secret Service spokesman said the incident occurred shortly after 3 p.m. ET when a man carrying a gun approached a checkpoint on E Street near the White House. The suspect was given verbal commands to stop and drop the gun, and when he failed to comply, he was shot once by a Secret Service agent and taken into custody. Secret Service officers and an agent provided medical aid to the suspect, and the city's EMS said he was transported to a local hospital with critical injuries.The suspect was shot in the abdomen, according to two sourcesPresident Barack Obama was not at the White House at the time of the incident 
 Question:The _ went into a lockdown that was lifted around 4 p.m.

White House