An influential Indian Mufti has declared Facebook and Twitter "unIslamic".
Abul Irfan Naimul Halim Firagni Mahli has said Muslims should steer clear of the site and women in particular should refrain from posting pictures of themselves.
The Sunni Mufti helps to run two popular helplines that advise Muslims on issues of faith, reports the India Express.
He said: "Women are not allowed to show their faces to anyone apart from their male kin like father and brothers, so posting pictures on Facebook is 'haraam' (banned).
"Women should not post pictures on Facebook or anywhere else on the Internet. This is unIslamic.
He did concede an account could be justified if used for business purposes.
The Mufti added: "We are liberal. We are not Taliban-minded. When youngsters ask us if they can have a Facebook or Twitter profile, we allow that. But the Shariah (Islamic law) does not allow women to post pictures."
The directive is in stark contrast to the one issued by the Pope recently.
The Vatican said that anyone following the Pope on Twitter would reduce their time in purgatory.