The US has suspended processing all immigration requests from Afghans, after an Afghan man was identified as the suspect in the shooting of two National Guard soldiers near the White House.
The US Citizenship and Immigration Services said the decision was made pending a review of "security and vetting protocols".
The suspect of Wednesday's shooting, which left two National Guard members critically injured, is said to have arrived in the US from Afghanistan in September 2021.
US President Donald Trump said the attack was an "act of terror", adding that he would take steps to remove foreigners "from any country who does not belong here".