DETROIT — Nearly all of Detroit’s public schools were closed for a second consecutive day Tuesday as hundreds of teachers called out sick over concerns that many may not get paid if the financially struggling district runs out of money.

As of 7:15 a.m., 94 of the district’s 97 schools were shut down — the same number that was forced to cancel classes Monday when more than 1,500 teachers did not show up for work.

It was not immediately known how many of Detroit Public School’s approximately 46,000 students were affected by the continuing sick-out, but the district said more than 45,000 missed class Monday.

Teachers were expected to continue picketing outside district administrative offices where several hundred protested on Monday. A union membership meeting was scheduled Tuesday afternoon at a Detroit church.

“Let us be clear. We are still locked out,” Detroit Federation of Teachers president Ivy Bailey said in an email late Monday to the union’s rank-and-file. “We do not work for free and therefore we do not expect you to report to school tomorrow.”

The district has been under continuous state oversight since 2009 and led by a series of emergency managers who have tried to cut down its debt and millions of dollars in annual deficits. Current transition manager and former federal judge Steven Rhodes, who oversaw the city’s recent bankruptcy, warned over the weekend that $47.8 million in emergency money that the state approved in March will run out by June 30.

Teachers opting to have their pay spread over a full 12 months instead of the course of the school year would not receive paychecks in July and August without more help from the state.

The state Legislature is considering a $720 million restructuring plan that would pay off the district’s enormous debt.

But the growing sick-outs that started late last year with just a small group of teachers appear to be threatening the plan.