Despite Egypt’s denial of the existence of smuggling tunnels beneath it, security officials believe that the Philadelphi Corridor serves as the primary route for weapons bound for Hamas.

Source: https://www.algemeiner.com/2023/12/31/securing-the-philadelphi-corridor-a-strategic-imperative-for-israel/

In July 1998, while trying to cross the Philadelphi Corridor to Egypt, he escaped from a force from the Nahal 50th Battalion which was lying in ambush a few dozen meters away.

Source: https://www.jewishpress.com/news/israel/idf/iaf-attacks-home-of-shabbat-massacre-mastermind-mohammed-deif-killing-several-family-members/2023/10/11/