Portuguese President Marcelo de Sousa signed amendments to a law, which tightened the criteria for granting Portuguese citizenship to descendants of Jews expelled from the country at the end of the 15th century.

Under the new amendments, individuals seeking citizenship must not only prove their connection with Portuguese Jews but also reside in the country for at least three years.

This tightening of the law follows the scandal involving billionaire Roman Abramovich, who obtained a Portuguese passport under this law.

It's worth noting that the investigation did not uncover any violations on the part of the Jewish community of Porto, which assisted Abramovich in obtaining citizenship.