NEW : Polls close after first day of voting on a draft constitution . Security forces arrest Hundreds people on the past three years of vote , the past three years marred by violence . The draft constitution would put more power in the hands of the military . Hundreds have died amid political turmoil in Egypt over two days .
NEW : Polls close after two days of voting on a draft constitution . Security forces arrest 125 people on second day of vote , first day marred by violence . The draft constitution would put more power in the hands of the military . Hundreds have died amid political turmoil in Egypt over the past three years .