A member of a civil society releases sky lanterns to pay tribute to victims of an attack on a Peshawar army public school in 2014, during a ceremony marking the second anniversary of the attack, in eastern Pakistan's Lahore on Dec. 15, 2016. On Dec. 16, 2014, a group of armed militants disguised as military men attacked a military-run school in Peshawar, killing at least 141 people --132 children and nine staff members, while injuring 133 others. (Xinhua/Sajjad)
