Pakistan’s airspace closure has forced Indian airlines to reroute international flights. The worst hit are Central Asian countries.

Tata-owned Air India and budget carrier IndiGo on Thursday issued travel advisories after Pakistan abruptly closed its airspace to all Indian-owned or Indian-operated airlines, triggering flight disruptions across several international routes.

IndiGo said that the sudden closure of Pakistani airspace has disrupted several of its international flight operations.