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The Federal Aviation Administration is investigating an incident at the Des Moines International Airport late Monday night.

The FAA says the crew on an express jet flight coming from Chicago reported seeing a green laser in the cockpit. It happened just a half a mile east of Des Moines.

It’s not known if the pilot or anyone else was injured.

Authorities are ramping-up responses to similar reports across the country. Interfering with a flight crew is a federal crime.