An Iraqi man at the centre of a terror scare on an easyJet flight from Vienna to London has been released without charge.
The man was hauled off the plane for questioning, moments before takeoff on Sunday after the woman sat next to him alerted the cabin crew to a possible threat.
She said she believed she had seen messages related to so-called Islamic State on his phone.
All the passengers were forced to disembark and all the bags were searched.
The plane ultimately took off three hours later, but without the man or the woman who were still being questioned.
“There was nothing suspicious found and he has been allowed to continue his journey,” Austrian interior ministry spokesman Karl-Heinz Grundboeck said Sunday.
“The only thing outstanding is a detailed analysis of his mobile phone,” he added.
Europe is on high alert following Tuesday’s twin bombings in Brussels, which left 28 people dead.
Authorities have been carrying out a series of raids and arrests in connection with the blasts and the attacks in Paris in November.
Earlier, Belgian police charged another man with membership of a terror group.
It comes a day after a man identified in Belgian media as Faycal Cheffou was charged with terrorist murder, participation in a terrorist group and attempted terrorist killings.
Reports suggesting he may be the so-called “man in white”, who fled the airport in Brussels after his bomb failed to detonate, have not been confirmed.