Spain has launched a new amnesty program allowing undocumented migrants to apply for legal status, drawing thousands of applicants across the country.

Long lines have formed as migrants seek to take advantage of the regularization opportunity provided under the new government initiative.

The program has generated significant political opposition, with critics of Prime Minister Pedro Sánchez vowing to challenge the policy.

Opposition parties have expressed strong resistance to the amnesty program, setting up what appears to be a contentious political battle over immigration policy in Spain.