COLOMBO, Sri Lanka — All nine Muslim ministers in Sri Lanka’s government and two Muslim provincial governors resigned on Monday as the fragile, Buddhist-majority country grappled further with the communal backlash of the Easter Sunday bombings that killed as many as 250 people.

The resignations were in response to a hunger strike by an influential Buddhist monk, Athuraliye Rathana, who said he would fast to death unless the country’s president removed three senior Muslim officials — the two provincial governors and one of the ministers — that he accuses of having ties to the suicide bombers who targeted churches and hotels.

The eight ministers not targeted by Mr. Rathana announced their resignations in what appeared to be an act of solidarity with the three officials accused by the monk, who also serves as a member of Parliament and an adviser to the president, Maithripala Sirisena.