The closure Monday of an insolvent private vocational college in Australia that caters to foreign students has renewed concerns about the regulation of private educational providers there, The Australian reported. Sterling College, which operates campuses in Sydney and Brisbane, went into "administration" (a bankruptcy equivalent) Monday, leaving hundreds of students from India at risk of losing not only their tuition payments but also their visas, the newspaper reported. A federal agency in Australia is investigating "providers of concern," and authorities are auditing 17 "high risk" private colleges in Victoria, The Australian said.