GAZA CITY, Gaza Strip (AP) — Egyptian attempts to broker an end to a monthlong war between Israel and Hamas collapsed in heavy fighting Tuesday, with Palestinian militants firing dozens of rockets and Israel responding with airstrikes across the Gaza Strip. At least three Palestinians were killed.

The burst of violence, which erupted in the hours before a temporary truce was set to expire, left the Egyptian mediation efforts in tatters and raised the likelihood of a new round of fighting in a war that has already claimed more than 2,000 lives, most of them Palestinians.