Several state organizations want a Columbus non-profit to pull the plug on the Horizon Science Academy charter schools that have been the subject of employee complaints and state and FBI investigations.

The Ohio PTA, the Ohio Federation of Teachers and the Policy Matters Ohio think tank were among the groups calling this morning for the Buckeye Community Hope Foundation to withdraw support for 11 Horizon and Noble Academy charter schools this week, in time for the state's Feb. 1 deadline.

"Our understanding of state law is that you must inform the schools that you are not renewing their charters by February 1," the groups said in a letter to Buckeye "We ask that you take this step immediately."

All of the schools belong to the Concept charter school network that operates in the Midwest. Concept, in turn, is one of several charter systems affiliated with the Gulen movement that has attracted scrutiny nationwide.

The groups want Buckeye, the "sponsor" or authorizer of the schools, to not renew its contract with the schools. That would force the schools to find another sponsor – a state-approved agency that allow charters to operate while providing oversight of them.

(Read more at Cleveland.com)