The Pope makes his appeal:

The appeal was sent in a letter in Pope Benedict XVI’s name by Vatican Secretary of State Cardinal Angelo Sodano.

The note, excerpts of which were released by the Vatican, said the pope’s appeal was inspired by "profound human compassion" and by a "firm belief in the dignity of human life and by respect for every person’s freedom of conscience and religion".

Releasing Mr Rahman would "contribute in a most significant way to our common mission to foster mutual understanding and respect among the world’s different religions and cultures", it added.