Meanwhile, Israel has started expanding its ground operations to the whole of the Gaza Strip, CNN reported quoting Israel Defence Forces (IDF) on Sunday.
According to a statement from Prime Minister Benjamin Netanyahu's office, the breakdown in talks occurred due to Hamas not meeting its commitment to the return of all women and children held hostage, as outlined in an agreement facilitated by foreign mediation.
Netanyahu emphasised the need for strategic and careful decision-making by the war cabinet. stating, "We are continuing now to speak with our enemy about continuing to free hostages -- speaking with fire."
Mark Regev, a senior advisor to Israel's Prime Minister Benjamin Netanyahu and a former Israeli Ambassador to the UK, said on Sunday "When compared to the West's campaign to destroy ISIS, Israel's war against Hamas is producing far fewer civilian casualties."
Sirens in Israel alarmed on Friday morning as a rocket was launched from within Gaza, the attack would be the first in a week, being launched an hour before the end of the agreed ceasefire between the two forces, reported The Times of Israel.
Sanchez, ignoring the morning's attack, commented that he had "genuine doubts" about Israel's concerns for the humanitarian situation in Gaza as relates to the civilian population there.
Prior to his meeting with President Abbas, Blinken engaged in discussions with Israeli Prime Minister Benjamin Netanyahu and the war cabinet in Jerusalem.
The woman, in her 20s and in an advanced state of pregnancy, was taken to the Assaf HaRofeh Hospital in Be'er Yaakov with stab wounds. Doctors performed an emergency C-section but were unable to save the mother or the fetus.
Three Israelis have been killed and at least a further seven injured in a terror shooting on Thursday morning, Israeli police have confirmed the two shooters responsible have been neutralised, The Times of Israel has reported.