Dozens of Israeli jets launched more than 100 missiles into the Gaza Strip overnight as the violence entered its second week and hours after President israel-hamas-conflict-worsens-n1267704" target="_blank" rel="noopener">Joe Biden said he would support a ceasefire in the conflict.

The Israeli military said that the 110 guided missiles launched from 62 fighter jets had targeted the “metro,” a network of tunnels used by Hamas, the militant group that governs Gaza.

At least 212 people, including 61 children, have been killed by the Israeli strikes over the past week, according to the Gaza Health Ministry. Fifteen Palestinians have been killed in clashes in the occupied West Bank.

During that time Hamas has launched some 3,440 rockets from Gaza into Israel, killing ten Israelis including two children and one soldier, officials there said. Israel’s Iron Dome missile defense system intercepts the vast majority of the rockets, and the population shelter in a network of shelters and safe rooms throughout the country.