American Airlines resumes flights after nationwide 'technical issue'

NEW YORK — (NEW YORK) --A "technical issue" briefly disrupted American Airlines flights nationwide early on Tuesday, the airline said, at the start of a busy Christmas Eve for travelers around the country.

The airline flagged "a technical issue with all American Airlines flights," in a post to X early on Tuesday.

The disruption will be unwelcome for a record number of Americans expected to travel across this holiday season. The Transportation Security Administration said it expects to screen nearly 40 million travelers from Dec. 19 to Jan. 2 -- a 6.2% increase from 2023.

This is a developing story. Please check back for updates.

ABC News' Ayesha Ali, Clara McMichael and Emily Shapiro contributed to this report.