Israel has launched a series of attacks in the Gaza Strip, in apparent retaliation for the cross-border killing of an Israeli civilian by a Gaza sniper.
Israel said it launched the attacks from the air and on the ground, targeting what it called "terror sites" in Gaza -- including a weapons manufacturing facility and a concealed rocket launcher.
Officials of Hamas, the group that rules the Gaza Strip, reported that a three year-old girl was killed in the Israeli attacks.
It was the most serious flareup of its kind in more than a year.
The Palestinian sniper, operating just over the border in the Gaza Strip, killed the Israeli civilian earlier Tuesday.
"This is a very severe incident and we will not let it go unanswered," said Israeli Prime Minister Benjamin Netanyahu.
On Sunday, a bomb exploded on an Israeli bus near Tel Aviv, causing no casualties.