Part of the Denver Air Route Traffic Control Center lost communications with planes for about 90 seconds on May 12, the FAA confirmed this week.

The FAA says controllers at Denver Center, which handles high-altitude air traffic, lost some radio frequencies for about 90 seconds as they coordinated the air space on Monday. The interruption is the latest in a string of communications outages at Newark Liberty International Airport.

Air traffic controllers in the US were left in 90 seconds of silence this week when they lost contact with aircraft after a 'system failure'