PESHAWAR: At least five cops were martyred and another eight left injured as militants attacked police checkpoints at different locations late at night in Khyber-Pakhtunkhwa, including Peshawar, Upper Dir and Lower Dir, police said on Thursday. Over the past few months, multiple areas of KP — including Bannu, Peshawar, Karak, Lakki Marwat and Bajaur — have seen a series of …