<p><img src="https://static4.businessinsider.com/image/60675293a7d803001963e7dc-2000/GettyImages-1231183371.jpg" border="0" alt="US Capitol" data-mce-source="Samuel Corum/Getty Images" data-mce-caption="The U.S. Capitol is seen past the Washington Monument as a flock of Geese fly over the National Mall on President's Day, February 15, 2021 in Washington, DC."></p><p></p><bi-shortcode id="summary-shortcode" data-type="summary-shortcode" class="mceNonEditable" contenteditable="false">Summary List Placement</bi-shortcode><p>Capitol Police sent out an alert Friday afternoon notifying those in the complex that they should remain indoors because of an "external security threat."</p><p>Early videos showed a heavy police response outside of the Capitol, including a helicopter landing on the premises.</p><div><blockquote class="twitter-tweet" data-lang="en" data-cards="" data-conversation=""><p lang="en" dir="ltr"><a href="https://t.co/KasU6ifrZm">pic.twitter.com/KasU6ifrZm</a></p> Jake Sherman (@JakeSherman) <a href="https://twitter.com/mims/statuses/1378031711766863872'ref_src=twsrc%5Etfw">April 2, 2021</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script></div><div><blockquote class="twitter-tweet" data-lang="en" data-cards="" data-conversation=""><p lang="en" dir="ltr">A helicopter just landed on the east front of the Capitol. Ive never seen anything like this before. ever. <a href="https://t.co/LxV0mywRSe">pic.twitter.com/LxV0mywRSe</a></p> Jake Sherman (@JakeSherman) <a href="https://twitter.com/mims/statuses/1378033434082344972'ref_src=twsrc%5Etfw">April 2, 2021</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script></div><p>Witnesses reported a car crashed into a barrier outside of the Capitol shortly after 1 p.m.</p><p>A pair of stretchers were also seen by a reporter as first responders arrived on the scene.</p><div><blockquote class="twitter-tweet" data-lang="en" data-cards="" data-conversation=""><p lang="en" dir="ltr">Security incident at the Capitol right now off of Constitution Ave. All Capitol buildings are locked down.<br><br>Per Jacquis video here, it looks like a car tried to ram through a barrier. <a href="https://t.co/TBndMWyarw">https://t.co/TBndMWyarw</a></p> Andrew Desiderio (@AndrewDesiderio) <a href="https://twitter.com/mims/statuses/1378033384312692736'ref_src=twsrc%5Etfw">April 2, 2021</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script></div><p>Neither the House nor Senate were in session on Friday.</p><p>Capitol Police confirmed that someone rammed a car into two officers. A suspect is in custody, and the driver along with both officers were taken to the hospital, according to police.</p><div><blockquote class="twitter-tweet" data-lang="en" data-cards="" data-conversation=""><p lang="en" dir="ltr">CRITICAL INCIDENT: USCP is responding to the North Barricade vehicle access point along Independence Avenue for reports someone rammed a vehicle into two USCP officers. A suspect is in custody. Both officers are injured. All three have been transported to the hospital. <a href="https://t.co/4TXIdulJc6">pic.twitter.com/4TXIdulJc6</a></p> U.S. Capitol Police (@CapitolPolice) <a href="https://twitter.com/mims/statuses/1378036076175110145'ref_src=twsrc%5Etfw">April 2, 2021</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script></div><p></p><p><em>This is a developing story. Check back for updates.</em></p><p><a href="https://www.businessinsider.com/us-capitol-is-on-lockdown-over-an-external-security-threat-2021-4#comments">Join the conversation about this story »</a></p> <p>NOW WATCH: <a href="https://www.businessinsider.com/worlds-most-expensive-liquid-thoroughbred-horse-semen-2020-3">Why thoroughbred horse semen is the world's most expensive liquid</a></p>
Click here to read full news..