MATAMOROS, Mexico (AP) — Migrants are rushing across the border hours before pandemic-related asylum restrictions are to expire, fearing that policies will make it far more difficult to gain entry into the United States. In a move to clear out overwhelmed holding facilities, a U.S. official says Border Patrol agents were told Wednesday to begin releasing some migrants with instructions to appear at an immigration office in the United States within 60 days. The Biden administration has been unveiling measures to replace Title 42, which suspended rights to seek asylum since March 2020 on grounds of preventing the spread of COVID-19.