Gaza’s government media office described the violations as “systematic” and warned they threaten “prospects for stability”.

The statement followed a wave of Israeli air strikes across the Gaza Strip on Saturday, including in areas outside its control.

At least 21 people were killed, according to the Palestinian health ministry.

Since the ceasefire began on 11 October, the death toll has reached 339, with 871 wounded.

Hamas accused Israel of “inventing pretexts” to justify its actions and undermine the agreement, aiming to resume the two-year genocidal war on Gaza.

The group said Israel was attempting to “impose a fait accompli”, creating irreversible facts on the ground that contradict the terms of the agreement.

Hamas called on mediators to intervene to prevent the collapse of the agreement.

Al Jazeera reported that Hamas sent an “angry” message to mediators after Saturday’s strikes.

However, officials denied that the group had withdrawn from the ceasefire agreement.

Israeli authorities accused Hamas of violating the ceasefire.

The military said troops came under fire, though no injuries were reported and no Palestinian group claimed responsibility.