Federal law enforcement officers captured an alleged “major leader” of the MS-13 gang Thursday morning, President Donald Trump said on social media.

Henrry Josue Villatoro Santos, a 24-year-old illegal migrant, was booked on weapons charges on Thursday morning after a raid near Dale City, Virginia, in Prince William County. He is just one of 340 illegal migrant criminals busted by a new FBI taskforce this month alone.

Officials captured Santos in Woodbridge, Virginia, just south of Washington, D.C., and charged him with being an illegal alien in possession of a firearm. He is one of the top three leaders of the MS-13 gang in the U.S., they said.