A progressive nonprofit that has been shelling out cash to anti-Israel protest groups is being sued by Black Lives Matter Global Network Foundation for fraud and withholding more than $33 million in donations, a bombshell lawsuit claims.

Tides Foundation, which has managed hundreds of millions in donations for progressive groups since it was founded in 1976, has “refused to honor its promises and continues to commandeer BLMGNF’s donations,” according to the 285-page lawsuit filed in California Superior Court, Los Angeles County, on Monday.

Instead, Tides doled out an undisclosed amount of donations to a radical BLM breakaway group run by anti-police activist Melina Abdullah — who lost a “frivolous” lawsuit against BLMGNF — according to court papers and an attorney for BLMGNF.