I saw a report today about an Afghan girl, aged 8, that bled to death on her wedding night. I cannot confirm the report from a reputable news source, but found this from the BBC regarding a 13 year old Yemeni girl that had the same fate.
http://news.bbc.co.uk/2/hi/middle_east/8610491.stm
http://news.bbc.co.uk/2/hi/middle_east/8610491.stm