Hamas claimed on Tuesday it had not rejected US Middle East envoy Steve Witkoff's framework for a hostage-ceasefire deal.
The remarks come amid the IDF's Operation Strength and Sword, which saw the military carry out widespread strikes on the Gaza Strip starting in the early hours of Tuesday.
"If Israel and the US think that such actions will change the agreement we reached, then they are deluding themselves," senior Hamas official Osama Hamdan told Al Jazeera on Wednesday.
"We have not received any official proposal from Egypt, and these are ideas being marketed in the media by the Americans and Israelis in the hope that the mediators will adopt these ideas - while Qatar and Egypt, the mediators, condemned Israel in statements and demanded a return to what had already been agreed upon."
The terror organization stated that ending the ceasefire and increasing military pressure would leave the remaining hostages "to an unknown fate," according to an Axios report.
'A death sentence' for remaining hostages
"We hold the criminal Netanyahu and the Zionist enemy fully responsible for the consequences of the treacherous aggression on Gaza," the terror organization wrote in a statement on Telegram.
Former hostages have expressed their fear for the remaining hostages with the return to war.
Eliya Cohen who was released in the recent hostage deal called the return to fighting a “death sentence” for the remaining hostages.
“I’m sorry, my brothers,” he said, addressing hostages Alon Ohel and Elkana Bohbot on Instagram.
Eve Young contributed to this report.