President Joe Biden cut his trip to Camp David short and returned to the White House Monday afternoon to deliver remarks on Afghanistan. 

The president landed at Fort McNair in Washington, D.C. a little after 1 p.m., and will deliver a speech at 3:45 p.m., according to updated guidance from the White House. 

He took no questions as he walked by reporters to the waiting motorcade.  

Biden was originally supposed to stay at Camp David until Wednesday as part of an August vacation.  

The nature and speed of the Afghan government's collapse in the face of a Taliban advance poses the most serious test of Biden's presidency so far. 

At least eight people were killed during chaos at the Kabul airport on Monday, as thousands of Afghans traveled to the airfield in hopes of escaping the Taliban. 

Two of those killed were armed Afghans shot dead by US troops. 

Another three were run over by taxiing jets. An additional three were stowaways who fell from the engines of a US Air Force jet as it took off. 

Meanwhile, Taliban fighters are going door to door to find Afghan special forces who fought alongside the U.S., Fox News reported.