Israel freed two Israeli-Argentinian hostages in Rafah on Monday under the cover of airstrikes which local health officials said killed 67 Palestinians and wounded dozens in the southern Gaza city that is the last refuge of about a million displaced civilians.

A joint operation by the Israeli military, the domestic Shin Bet security service and the Special Police Unit in Rafah freed Fernando Simon Marman, 60, and Louis Hare, 70, the military said. They were among 250 people seized during the Oct. 7 raid by Hamas militants that triggered Israel’s war on Gaza.

More than four months on, much of the densely-populated strip of land on the Mediterranean is in ruins, with 28,340 Palestinians dead and 67,984 wounded, according to Gaza health officials, who say many others are buried under rubble.