Afghanistan, Nov. 14 -- The UN mission in Afghanistan is under fire on social media platforms for blocking its critics after the leakage of a controversial letter it had sent to Independent Election Commission of Afghanistan regarding the alleged inappropriate actions of an election commissioner.

The social media activists particularly in Facebook and Twitter have criticized the UN mission for blocking its critics, accusing the mission of adopting an approach to 'silent freedom of speech' by blocking people and deleting their comments on the two vastly used social media platforms.

"@UNAMAnews official Twitter account and Facebook pages r trying silent freedom of speech by blocking people and deleting their comments in Facebook, what @UNAM...