Too many pictures
So i just recently synced my new iPhone 6 with my iTunes to get all of my pictures using iPhoto. Now all the pictures are on my phone but half of them have been duplicated and almost 1000 pictures I deleted from my old phone have been put onto my new phone. This wouldn't be that big of a deal but my new phone will not allow me to delete these pictures!! Please help!!
iPhone 6, iOS 8.1.2