A leading figure in Hamas’s political bureau has said that Israel is undermining the peace process, but the Palestinian movement remains open to negotiations.

Lead Hamas negotiator Khalil al-Hayya made the announcement in a televised speech on Thursday. Late last month, Israel and Hamas appeared to be making progress following discussions mediated by Qatar,

The White House said Thursday that the U.S. has submitted a new Gaza ceasefire proposal that has Israeli support. Hamas officials gave the Israeli-approved draft a cool response, but said they wanted to study the proposal more closely before giving a formal answer.