Palestinian hospital officials say Israeli airstrikes on the southern city of Rafah in the Gaza Strip have killed at least five people.

Among those killed in the strikes overnight and into Thursday were two children, identified in hospital records as Sham Najjar, 6, and Jamal Nabahan, 8.

More than half of the territory’s population of 2.3 million have sought refuge in Rafah, where Israel has conducted near-daily raids as it prepares for an offensive in the city.

In central Gaza, four people were killed in Israeli tank shelling, and their bodies were brought to a local hospital. Family members told The Associated Press they were killed as they tried to move to northern Gaza, where Israel’s military is preventing people from returning to their homes.

Meanwhile, a top Hamas political official told The Associated Press the Islamic militant group is willing to agree to a truce of five years or more with Israel and that it would lay down its weapons and convert into a political party if an independent Palestinian state is established along pre-1967 borders.