Israel saying it widened its ground offensive, son of senior Hamas leader killed.

GAZA CITY, Gaza Strip (AP) — Israel says it has widened its ground offensive, sending more troops into Gaza after demolishing more than a dozen Hamas tunnels and intensifying tank fire on border areas.

Loud explosions have been shaking Gaza as Israeli flares light up the night sky and fighter jets buzz the densely populated territory.

Since the start of fighting almost two weeks ago, Gaza health officials say 348 Palestinians have been killed and 2,700 wounded in Israeli air and artillery strikes.

Five Israelis — three soldiers and two civilians — have also been killed and dozens wounded as rockets continue to rain down on Israel.

As the fighting rages, U.N. chief Ban Ki-moon is on his way to Qatar as part of renewed cease-fire efforts.

Hamas last week rejected an Egyptian call to both sides to halt hostilities, saying it first wants guarantees that Israel and Egypt will significantly ease their border blockade of Gaza.