As US diplomats sought to contain the fallout of the weekend's deadly strike in Israeli-occupied Golan Heights, Israel and Hezbollah exchanged fire on Tuesday, with one Israeli civilian killed in a rocket attack, according to medics. Israel has blamed Lebanese militant group Hezbollah for the Golan Heights strike and has vowed to retaliate. Hezbollah denies responsibility for the rocket strike, which hit a football pitch, killing 12 children from the Druze community.