Armed conflicts and attacks
War in North-West Pakistan
A bomb detonates in a bus carrying government employees in Peshawar, Pakistan, killing 15 and injuring at least 54. (AP via CBS)
Boko Haram insurgency
2016 Maiduguri suicide bombings
Two female suicide bombers detonate their explosives at a mosque during morning prayer on the outskirts of Maiduguri, Nigeria, killing 22 and injuring 18. (AP via New York Times)[permanent dead link] (Newsweek)
Disasters and accidents
The Washington Metro, a commuter rail system which transports nearly 1 million passengers across the Washington, D.C. metropolitan area per day, shuts down to allow for an emergency inspection of 600 electrical cables, following two fires occurring over the past 14 months. Officials say the system is scheduled to resume service by the following morning, though individual Metro lines or stations could remain closed indefinitely if problems are identified. (The Washington Post) (The Washington Times) (CBS News)