New Delhi, April 25 -- IndiGo Airlines on Friday issued a travel advisory for commuters and offered them rescheduling and refunds after Pakistan closed its airspace for Indian flights.

IndiGo Airlines said that they are "diligently" assessing the situation and working on the best alternatives for the customers, following the closure of airspace.

"Due to airspace closure by Pakistan, a few of our international flights continue to be impacted. Our teams are working diligently to assess the situation and assist impacted customers with the best possible alternatives," IndiGo airlines stated in the travel advisory.

"This sudden announcement is beyond our control and we sincerely regret the disruption it may have caused to your travel plans....