Palestinian President Mahmoud Abbas canceled a planned meeting with President Joe Biden following a strike against a Christian Gaza hospital.

The Al Ahli Baptist Hospital was hit by a bomb or rocket Tuesday night, with Palestinian authorities saying the death toll exceeds 500 people. Hamas, the terrorist organization that is the de facto government of the Gaza Strip, immediately accused Israel of being behind the strike, but an investigation from the Israeli Defense Forces attributed the strike to a different Gaza-based terror group known as Palestinian Islamic Jihad.

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"From the analysis of the operational systems of the IDF, an enemy rocket barrage was carried out towards Israel, which passed in the vicinity of the hospital, when it was hit," said Rear Adm. Daniel Hagari, IDF spokesman. "According to intelligence information, from several sources we have, the [Palestinian Islamic Jihad] organization is responsible for the failed shooting that hit the hospital."

Palestinian Islamic Jihad, which reportedly participated in the unprecedented terrorist attacks on Israel earlier this month, is a “wholly owned subsidiary of Tehran,” Carnegie Endowment for International Peace senior fellow Aaron David Miller, a former State Department historian who has coordinated previous rounds of Arab-Israeli negotiations, said last week.

Abbas and most Muslim authorities have placed the blame on Israel, with the Palestinian Authority president canceling a planned visit with Biden in protest.

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The meeting was supposed to take place on Wednesday, and the cancellation was first made known to the Associated Press by a senior Palestinian official.

Biden and his top officials have repeatedly publicly shared their support for Israel, and he has provided it with military equipment for the war it has declared on Hamas. The United States also strengthened its military posture in the Middle East to deter any other anti-Israel actor in the area from joining the battle.