From the Jerusalem Post:
An anti-tank missile fired from the Gaza Strip struck a school bus in the Negev on Thursday, critically wounding a 16-year-old boy and setting off a fierce round of clashes between the IDF and Palestinian terrorists.
The missile, which was fired by Hamas, hit the bus moments after most of the children got off, while it was driving near Kibbutz Saad, about 2.5 km. from Gaza. Only two people were on the bus when it was hit – the driver, who was lightly injured, and the boy, who was en route to visit his grandmother. The bus driver is a friend of the family.
Immediately after the attack, Palestinians fired more than 45 mortar shells and Katyusha and Kassam rockets into Israel.
One of the Grad-model Katyusha rockets was intercepted by the Iron Dome counter-rocket defense system deployed south of Ashkelon, proving its capabilities in combat for the first time.
IDF officers said that the attack – the first time an anti-tank missile was fired deep into Israel, and, officers believe, deliberately targeting the school bus – “crossed all red lines” and that Hamas would pay dearly.