MIAMI INTERNATIONAL AIRPORT, FLA. (WSVN) - Police have given the all clear at Miami International Airport after they investigated what airport officials described as a potential security breach at a Transportation Security Administration checkpoint.

According to MIA officials, Miami-Dade Police officers responded at around 5:30 p.m. Sunday to check whether a security breach took place at Concourse E’s TSA checkpoint.

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Police said the lockdown was caused by someone entering the security area through the exit point.

Concourses E and D were temporarily closed while officers investigated. Police gave the all clear at around 6 p.m.

According to a Twitter user who was at Concourse D at the time, passengers were waiting for about 20 minutes.

The terminals have since reopened.

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