"
Hamas has built a sophisticated network of
tunnels that it has used to penetrate Israel to
carry out attacks on civilians and soldiers.
Israel destroyed dozens of the tunnels in the
war with the militant group in Gaza in 2014.
..."
http://mobile.nytimes.com/aponline/2016/01/28/world/middleeast/ap-ml-gaza-militants-killed.html?referer=
