"Attempts to cast doubt and offend Egypt's mediation efforts... will only lead to further complications of the situation in Gaza and the entire region and may push Egypt to completely withdraw from its mediation in the current conflict," Diaa Rashwan, head of Egypt's State Information Service, said in a statement published on social media.

Quoting three people familiar with the discussions, CNN on Tuesday said Egyptian intelligence changed terms of a ceasefire proposal that Israel agreed to earlier in May.

When Hamas announced on May 6 that it accepted the agreement, it was not the proposal that fellow mediators from the U.S. and Qatar thought was submitted to Hamas for review, according to CNN.

The changes made by Egyptian intelligence caused anger and recrimination among U.S., Israeli and Qatari officials and caused an impasse in the talks, the CNN report said.

Rashwan said in the statement that Cairo's participation as a mediator resulted from "repeated requests and insistence" from Israel and the U.S.

Egypt said some "parties" recently directed blame towards Egyptian and Qatari mediators and accused them of being biased, he added.

Tensions have been growing between Egypt and Israel over the Israeli military operation in Rafah at the southern end of the Gaza Strip, just across the border from Egypt.

Since the war between Israel and Hamas began on Oct. 7, Egypt has expressed concern that Israel's campaign could push residents of the Palestinian enclave across its border, where it has bolstered security.

(This story has been refiled to add a missing word in paragraph 4)