Mourners in Israel on Friday were burying the remains of one of the last hostages released in the first phase of the ceasefire between Hamas militants and Israel, as negotiators discussed a second phase of the deal that could end the war in Gaza and see the remaining live hostages returning home.

New tensions between Israel and Hamas are raising doubts about prospects for second phase of cease-fire and hostage deal in Gaza.

In the final exchange of the first phase of the Gaza ceasefire, Hamas released the bodies of four hostages and Israel released hundreds of Palestinian prisoners. The six-week first phase ends on Saturday and details of a second phase are still to be determined.