More than one million undocumented migrants and asylum seekers have applied for legal residency under Spain's mass regularisation programme, marking a significant response to one of Europe's largest immigration initiatives.

It's a race against time in Spain, where undocumented migrants have just hours left to apply for a special mass regularisation programme before the deadline expires.

June 30th marks the deadline for the mass regularisation of undocumented migrants in Spain, with the data suggesting that the total number of applicants will be far higher than…