Updated: May 20, 2016 at 6:14 p.m.

Secret Service officers shot a man with a gun outside the White House Friday afternoon, the Washington Post reported.

The man, who has not been identified, approached a security check point on West Executive Drive, near 17th Street, shortly after 2 p.m. and was shot after refusing to drop the weapon, according to the Post.

The suspect was taken to a hospital in critical condition. NBC Washington reported that the man is being treated at GW Hospital.

The Post reported that there was a “massive police response” near the Executive Mansion – two blocks from the eastern edge of campus.

University spokeswoman Maralee Csellar said officials are monitoring the situation, but there were no disruptions on campus.

The White House and Treasury Department were placed on lockdown and a portion of 17th Street was closed while police investigated the scene.

President Obama was not at the White House at the time, Vice President Biden was secure inside the complex during the incident, the Post reported.