Former U.S. President Donald Trump gave Hamas until 6 p.m. Washington time on Sunday to accept his Gaza ceasefire plan, warning of “unprecedented consequences.”

Posting on Truth Social, Trump demanded the immediate release of all hostages, saying the peace deal has backing from Middle Eastern states, the United States, and the Israeli occupation.

He described it as the “last chance” to prevent “hell” from breaking out against Hamas, urging Palestinian civilians to leave danger zones immediately.

Hamas said it is still reviewing the proposal.