Learn more about the Islamist group Boko Haram.
In February 2015, A military plane dropped a bomb on mourners in a Niger village on the border with Nigeria, killing 37 people and wounding 20 others. The plane was reportedly targeting Boko Haram.
Kevin Winter/Getty Images
Brace Hemmelgarn-USA TODAY Sports/Reuters
Montgomery County Sheriff Office
Gary W. Green/POOL
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!