A three-decade law banning pregnant girls from attending school has been scrapped by MPs in Zanzibar. Under the ban, girls under 18 who became pregnant on the semi-autonomous Tanzanian islands had to drop out of school and could not return. Women's groups had been campaigning to abolish the law saying it infringed on the girls' human rights. The BBC's Ally Saleh in Zanzibar says it has been hailed as a landmark for the predominantly Muslim archipelago.