An Israeli airstrike flattened a multistory building in central Gaza, killing at least 25 people and wounding dozens more, according to Palestinian medical officials, after strikes Thursday across the Gaza Strip killed at least 28 others.

The latest deadly strike hit the urban Nuseirat refugee camp just hours after U.S. President Joe Biden’s national security adviser, Jake Sullivan, told reporters in Jerusalem that the recent ceasefire in Lebanon has helped clear the way for a potential deal to end the war in Gaza between Israel and Hamas.