The Luthra brothers had fled to Thailand’s Phuket, hours after the December 6 blaze at the Birch by Romeo Lane nightclub, which killed 25 people.

IndiGo issued a travel advisory on Tuesday night, warning passengers of reduced visibility and slower flight movements on Wednesday morning.

US President Donald Trump has urged nations to have a united front against radical Islam after an Islamic State-inspired terror attack on a Jewish Hanukkah celebration at Sydney’s Bondi Beach claimed 15 lives.