Delta flight cancellations being investigated by U.S. Department of Transportation [Video]

The Department of Transportation is investigating Delta Air Lines over flight cancellations related to a global outage caused by a faulty software update last week affecting businesses worldwide.

U.S. DOT Secretary Pete Buttigieg said Tuesday morning that the agency is probing Delta to make sure the company is “following the law and taking care of its passengers during continued widespread disruptions.”

Delta is struggling to resume normal services after a worldwide IT outage by cybersecurity firm CrowdStrike on July 19.

“We’ve been in multiple six hour lines… just trying to get home,” said a frustrated Renita Lobo.

She and her kids were in LA on a vacation from Canada, for a family reunion. But, this adventure at the airport? She’s had it. “I’m way past my limit!”

Larry and Roberta Williams from Tennessee felt the same way. They were headed for Las Vegas, but have been in Los Angeles for several days waiting to get out.

“A …