more than a dozen people have been killed , Egyptian forces said . Tunnels linking Gaza and Egypt have been destroyed . Sinai has been in a state of lawlessness . Assailants killed More than 30 Egyptian soldiers August 5 .
More than 30 people have been killed , Egyptian forces said . Tunnels linking Egypt and Gaza have been destroyed . Sinai has been in a state of lawlessness . Assailants killed more than a dozen Egyptian soldiers last month .