A computer outage has delayed the departure of all Delta Airline flights scheduled for Monday morning, the company said in a statement.

"Delta has experienced a computer outage that has affected flights scheduled for this morning. Flights awaiting departure are currently delayed. Flights enroute are operating normally," the US-based airline said. 

Delta urged travelers "to check the status of their flights this morning while the issue is being addressed."

Delta gave no information on what caused the computer outage, or any indication how long it would take to fix the problem.

On Twitter, Delta representatives urged patience as they dealt with a flood of messages from concerned passengers.

"All our flights are grounded due to the outage," read one tweet.

"We're experiencing a systemwide issue," read another tweet, apologizing for the inconvenience.