Israel says it is striking parts of a secret labyrinth of tunnels built underneath the Gaza Strip by Hamas, as it continues to retaliate for the Palestinian Islamist militant group’s unprecedented cross-border attack on Saturday. It is very difficult to assess the size of the network, which Israel has dubbed the “Gaza Metro” because it is believed to stretch beneath a territory that is only 41km (25 miles) long and 10km wide. Following a conflict in 2021, the IDF said it had destroyed more than 100km of tunnels in air strikes. Hamas meanwhile claimed that its tunnels stretched 500km and that only 5% were hit.
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