Chinese and South Korean students who took the Oct. 11 SAT are having their scores delayed in order for the College Board to determine whether there was mass cheating. Each test will be evaluated for evidence of cheating.

From Time:

Allegations of Mass SAT Cheating Delay Test Scores in China and South Korea

All students living in China and South Korea who took the SAT on Oct. 11 will have their test scores delayed and reviewed because of allegations of widespread cheating, officials from the College Board and its global test administration and security provider, Educational Testing Service (ETS), tell TIME.

The allegations of cheating, which are “based on specific, reliable information,” according to the officials, could be held up for as many as four weeks, potentially excluding some students for “early decision” or “early action” admissions to U.S. colleges and universities. Each individual test score will be evaluated for evidence of cheating

“The College Board will make universities aware of the circumstances and can supply students with a letter to share with the schools to which they are applying,” ETS spokesman Thomas Ewing tells TIME. “Students should contact their preferred schools for more information.”