Israel and the Lebanese militant group Hezbollah traded heavy fire early Sunday but backed off from sparking a widely feared all-out war, as both sides signaled their most intense exchange of fire in months was over. The cross-border attack came as high-level talks resumed in Egypt aimed at a cease-fire between Israel and Hamas in the war in Gaza that also would ease regional tensions. Hezbollah claimed to hit an Israeli military intelligence site near Tel Aviv in a barrage of hundreds of rockets and drones, and Israel claimed its strikes had been preemptive to avert a larger attack.