Two foreign nationals have been arrested on immigration violations in New Bedford where police say the surviving Boston Marathon bombing suspect may have once lived.

Immigration and Customs Enforcement said Saturday that Homeland Security Investigations agents had arrested two people in New Bedford. Dzhokhar Tsarnaev, the University of Massachusetts Dartmouth student remains hospitalized after exchanging gunfire with police early Friday morning, and Friday Night.

Federal authorities searched off-campus housing near UMass Dartmouth on Friday and took three people in for questioning. Police say Tsarnaev may have lived at the complex.